26215597479264 has 48 divisors (see below), whose sum is σ = 68817869468208. Its totient is φ = 8738287910912.

The previous prime is 26215597479263. The next prime is 26215597479301. The reversal of 26215597479264 is 46297479551262.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26215597479263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357537 + ... + 7249760.

It is an arithmetic number, because the mean of its divisors is an integer number (1433705613921).

Almost surely, 2^{26215597479264} is an apocalyptic number.

26215597479264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26215597479264 is an abundant number, since it is smaller than the sum of its proper divisors (42602271988944).

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

26215597479264 is a wasteful number, since it uses less digits than its factorization.

26215597479264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643207 (or 7643199 counting only the distinct ones).

The product of its digits is 457228800, while the sum is 69.

The spelling of 26215597479264 in words is "twenty-six trillion, two hundred fifteen billion, five hundred ninety-seven million, four hundred seventy-nine thousand, two hundred sixty-four".