2597658850940 has 24 divisors (see below), whose sum is σ = 5775970857552. Its totient is φ = 977942155520.

The previous prime is 2597658850931. The next prime is 2597658850981. The reversal of 2597658850940 is 490588567952.

It is a super-2 number, since 2×2597658850940² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (68).

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, 3820086206 + ... + 3820086885.

It is an arithmetic number, because the mean of its divisors is an integer number (240665452398).

Almost surely, 2^{2597658850940} is an apocalyptic number.

2597658850940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2597658850940 is an abundant number, since it is smaller than the sum of its proper divisors (3178312006612).

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

2597658850940 is a wasteful number, since it uses less digits than its factorization.

2597658850940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640173117 (or 7640173115 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 68.

The spelling of 2597658850940 in words is "two trillion, five hundred ninety-seven billion, six hundred fifty-eight million, eight hundred fifty thousand, nine hundred forty".