26487923904 has 168 divisors, whose sum is σ = 82799895360. Its totient is φ = 8046784512.

The previous prime is 26487923899. The next prime is 26487923909. The reversal of 26487923904 is 40932978462.

It is an interprime number because it is at equal distance from previous prime (26487923899) and next prime (26487923909).

It is a super-2 number, since 2×26487923904² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (26487923909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569164 + ... + 613940.

It is an arithmetic number, because the mean of its divisors is an integer number (492856520).

Almost surely, 2^26487923904 is an apocalyptic number.

26487923904 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 26487923904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41399947680).

26487923904 is an abundant number, since it is smaller than the sum of its proper divisors (56311971456).

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

26487923904 is a wasteful number, since it uses less digits than its factorization.

26487923904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44887 (or 44874 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 26487923904 in words is "twenty-six billion, four hundred eighty-seven million, nine hundred twenty-three thousand, nine hundred four".