26297964056 has 48 divisors (see below), whose sum is σ = 61771328640. Its totient is φ = 10403588160.

The previous prime is 26297964029. The next prime is 26297964083. The reversal of 26297964056 is 65046979262.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26297964029) and next prime (26297964083).

It is a super-2 number, since 2×26297964056² (a number of 22 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 26297963992 and 26297964010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2575160 + ... + 2585351.

It is an arithmetic number, because the mean of its divisors is an integer number (1286902680).

Almost surely, 2^26297964056 is an apocalyptic number.

26297964056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

26297964056 is an abundant number, since it is smaller than the sum of its proper divisors (35473364584).

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

26297964056 is a wasteful number, since it uses less digits than its factorization.

26297964056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160544 (or 5160533 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 26297964056 in words is "twenty-six billion, two hundred ninety-seven million, nine hundred sixty-four thousand, fifty-six".