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26959262040 = 233254710714891
BaseRepresentation
bin11001000110111001…
…011011000101011000
32120120211121102001200
4121012321123011120
5420203032341130
620215050314200
71643034642414
oct310671330530
976524542050
1026959262040
1110484889657
125284728960
132708419179
14143a679d44
15a7bbd9760
hex646e5b158

26959262040 has 192 divisors, whose sum is σ = 90324149760. Its totient is φ = 6969949440.

The previous prime is 26959262039. The next prime is 26959262047. The reversal of 26959262040 is 4026295962.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26959262047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1802995 + ... + 1817885.

It is an arithmetic number, because the mean of its divisors is an integer number (470438280).

Almost surely, 226959262040 is an apocalyptic number.

26959262040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26959262040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45162074880).

26959262040 is an abundant number, since it is smaller than the sum of its proper divisors (63364887720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26959262040 is a wasteful number, since it uses less digits than its factorization.

26959262040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15062 (or 15055 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 26959262040 in words is "twenty-six billion, nine hundred fifty-nine million, two hundred sixty-two thousand, forty".