26270233656 has 128 divisors (see below), whose sum is σ = 69147302400. Its totient is φ = 8301117440.

The previous prime is 26270233651. The next prime is 26270233673. The reversal of 26270233656 is 65633207262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26270233651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39863455 + ... + 39864113.

It is an arithmetic number, because the mean of its divisors is an integer number (540213300).

Almost surely, 2^26270233656 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 26270233656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34573651200).

26270233656 is an abundant number, since it is smaller than the sum of its proper divisors (42877068744).

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

26270233656 is a wasteful number, since it uses less digits than its factorization.

26270233656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 26270233656 in words is "twenty-six billion, two hundred seventy million, two hundred thirty-three thousand, six hundred fifty-six".