26261640324892 has 24 divisors (see below), whose sum is σ = 52527740370560. Its totient is φ = 11254033056240.

The previous prime is 26261640324847. The next prime is 26261640324943. The reversal of 26261640324892 is 29842304616262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39483234 + ... + 40142857.

Almost surely, 2^{26261640324892} is an apocalyptic number.

It is an amenable number.

26261640324892 is an abundant number, since it is smaller than the sum of its proper divisors (26266100045668).

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

26261640324892 is a wasteful number, since it uses less digits than its factorization.

26261640324892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79637881 (or 79637879 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 26261640324892 in words is "twenty-six trillion, two hundred sixty-one billion, six hundred forty million, three hundred twenty-four thousand, eight hundred ninety-two".