26317923984 has 135 divisors (see below), whose sum is σ = 81024053929. Its totient is φ = 7968639360.

The previous prime is 26317923971. The next prime is 26317924013. The reversal of 26317923984 is 48932971362.

The square root of 26317923984 is 162228.

It is a perfect power (a square), and thus also a powerful number.

26317923984 is a `hidden beast` number, since 263 + 1 + 79 + 239 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25976413584 + 341510400 = 161172^2 + 18480^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26317923984.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 21413482 + ... + 21414710.

Almost surely, 2^26317923984 is an apocalyptic number.

26317923984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

26317923984 is the 162228-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26317923984

26317923984 is an abundant number, since it is smaller than the sum of its proper divisors (54706129945).

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

26317923984 is a wasteful number, since it uses less digits than its factorization.

26317923984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494 (or 1245 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 26317923984 in words is "twenty-six billion, three hundred seventeen million, nine hundred twenty-three thousand, nine hundred eighty-four".