26954163040 has 144 divisors (see below), whose sum is σ = 77974974000. Its totient is φ = 8754988032.

The previous prime is 26954163037. The next prime is 26954163073. The reversal of 26954163040 is 4036145962.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26954162984 and 26954163002.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 58486 + ... + 239434.

It is an arithmetic number, because the mean of its divisors is an integer number (541492875).

Almost surely, 2^26954163040 is an apocalyptic number.

26954163040 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 26954163040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38987487000).

26954163040 is an abundant number, since it is smaller than the sum of its proper divisors (51020810960).

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

26954163040 is a wasteful number, since it uses less digits than its factorization.

26954163040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180997 (or 180982 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 26954163040 in words is "twenty-six billion, nine hundred fifty-four million, one hundred sixty-three thousand, forty".