26364550656 has 240 divisors, whose sum is σ = 74164373712. Its totient is φ = 8319467520.

The previous prime is 26364550643. The next prime is 26364550733. The reversal of 26364550656 is 65605546362.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78232920 + ... + 78233256.

Almost surely, 2^26364550656 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 26364550656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37082186856).

26364550656 is an abundant number, since it is smaller than the sum of its proper divisors (47799823056).

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

26364550656 is an equidigital number, since it uses as much as digits as its factorization.

26364550656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 26364550656 in words is "twenty-six billion, three hundred sixty-four million, five hundred fifty thousand, six hundred fifty-six".