26401857022164 has 48 divisors (see below), whose sum is σ = 67027077712448. Its totient is φ = 8039899358208.

The previous prime is 26401857022117. The next prime is 26401857022193. The reversal of 26401857022164 is 46122075810462.

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, 872369782 + ... + 872400045.

Almost surely, 2^{26401857022164} is an apocalyptic number.

It is an amenable number.

26401857022164 is an abundant number, since it is smaller than the sum of its proper divisors (40625220690284).

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

26401857022164 is a wasteful number, since it uses less digits than its factorization.

26401857022164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744769944 (or 1744769942 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 26401857022164 in words is "twenty-six trillion, four hundred one billion, eight hundred fifty-seven million, twenty-two thousand, one hundred sixty-four".