2597539788440 has 32 divisors (see below), whose sum is σ = 5850200106000. Its totient is φ = 1037996256384.

The previous prime is 2597539788419. The next prime is 2597539788491. The reversal of 2597539788440 is 448879357952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31823075 + ... + 31904594.

Almost surely, 2^{2597539788440} is an apocalyptic number.

2597539788440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2597539788440 is an abundant number, since it is smaller than the sum of its proper divisors (3252660317560).

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

2597539788440 is a wasteful number, since it uses less digits than its factorization.

2597539788440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63728699 (or 63728695 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 71.

The spelling of 2597539788440 in words is "two trillion, five hundred ninety-seven billion, five hundred thirty-nine million, seven hundred eighty-eight thousand, four hundred forty".