26256643507732 has 48 divisors (see below), whose sum is σ = 50555541201984. Its totient is φ = 11833040736000.

The previous prime is 26256643507697. The next prime is 26256643507741. The reversal of 26256643507732 is 23770534665262.

It is a happy number.

It is a super-2 number, since 2×26256643507732² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 2344153 + ... + 7616320.

It is an arithmetic number, because the mean of its divisors is an integer number (1053240441708).

Almost surely, 2^{26256643507732} is an apocalyptic number.

26256643507732 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

26256643507732 is a deficient number, since it is larger than the sum of its proper divisors (24298897694252).

26256643507732 is a wasteful number, since it uses less digits than its factorization.

26256643507732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961000 (or 9960998 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 58.

The spelling of 26256643507732 in words is "twenty-six trillion, two hundred fifty-six billion, six hundred forty-three million, five hundred seven thousand, seven hundred thirty-two".