26355381000 has 384 divisors, whose sum is σ = 89823427200. Its totient is φ = 6430694400.

The previous prime is 26355380983. The next prime is 26355381001. The reversal of 26355381000 is 18355362.

It is a super-2 number, since 2×26355381000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26355381001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 115088886 + ... + 115089114.

It is an arithmetic number, because the mean of its divisors is an integer number (233915175).

Almost surely, 2^26355381000 is an apocalyptic number.

26355381000 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 26355381000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44911713600).

26355381000 is an abundant number, since it is smaller than the sum of its proper divisors (63468046200).

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

26355381000 is a wasteful number, since it uses less digits than its factorization.

26355381000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 26355381000 in words is "twenty-six billion, three hundred fifty-five million, three hundred eighty-one thousand".