26765562656 has 96 divisors (see below), whose sum is σ = 63504000000. Its totient is φ = 10848045312.

The previous prime is 26765562589. The next prime is 26765562661. The reversal of 26765562656 is 65626556762.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544095 + ... + 2554593.

It is an arithmetic number, because the mean of its divisors is an integer number (661500000).

Almost surely, 2^26765562656 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 26765562656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31752000000).

26765562656 is an abundant number, since it is smaller than the sum of its proper divisors (36738437344).

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

26765562656 is a wasteful number, since it uses less digits than its factorization.

26765562656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11134 (or 11126 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 56.

The spelling of 26765562656 in words is "twenty-six billion, seven hundred sixty-five million, five hundred sixty-two thousand, six hundred fifty-six".