26523131904 has 168 divisors, whose sum is σ = 79954020432. Its totient is φ = 8456110080.

The previous prime is 26523131891. The next prime is 26523131933. The reversal of 26523131904 is 40913132562.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1687924 + ... + 1703564.

Almost surely, 2^26523131904 is an apocalyptic number.

26523131904 is a gapful number since it is divisible by the number (24) 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 26523131904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39977010216).

26523131904 is an abundant number, since it is smaller than the sum of its proper divisors (53430888528).

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

26523131904 is a wasteful number, since it uses less digits than its factorization.

26523131904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15696 (or 15669 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 26523131904 in words is "twenty-six billion, five hundred twenty-three million, one hundred thirty-one thousand, nine hundred four".