26494304256 has 680 divisors, whose sum is σ = 97441327104. Its totient is φ = 7007109120.

The previous prime is 26494304231. The next prime is 26494304257. The reversal of 26494304256 is 65240349462.

26494304256 is a `hidden beast` number, since 2 + 6 + 4 + 94 + 304 + 256 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26494304257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 854654961 + ... + 854654991.

Almost surely, 2^26494304256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26494304256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48720663552).

26494304256 is an abundant number, since it is smaller than the sum of its proper divisors (70947022848).

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

26494304256 is an frugal number, since it uses more digits than its factorization.

26494304256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 26494304256 in words is "twenty-six billion, four hundred ninety-four million, three hundred four thousand, two hundred fifty-six".