26251402602464 has 48 divisors (see below), whose sum is σ = 55658465690688. Its totient is φ = 12115935355392.

The previous prime is 26251402602457. The next prime is 26251402602487. The reversal of 26251402602464 is 46420620415262.

It is a super-2 number, since 2×26251402602464² (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 7 ways as a sum of consecutive naturals, for example, 98661734 + ... + 98927450.

It is an arithmetic number, because the mean of its divisors is an integer number (1159551368556).

Almost surely, 2^{26251402602464} is an apocalyptic number.

It is an amenable number.

26251402602464 is an abundant number, since it is smaller than the sum of its proper divisors (29407063088224).

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

26251402602464 is a wasteful number, since it uses less digits than its factorization.

26251402602464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503227 (or 503219 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 44.

The spelling of 26251402602464 in words is "twenty-six trillion, two hundred fifty-one billion, four hundred two million, six hundred two thousand, four hundred sixty-four".