2557086499902 has 16 divisors (see below), whose sum is σ = 5579097818112. Its totient is φ = 774874696920.

The previous prime is 2557086499901. The next prime is 2557086499973. The reversal of 2557086499902 is 2099946807552.

It is a super-2 number, since 2×2557086499902² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 38743734847 = 2557086499902 / (2 + 5 + 5 + 7 + 0 + 8 + 6 + 4 + 9 + 9 + 9 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557086499901) 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, 19371867358 + ... + 19371867489.

It is an arithmetic number, because the mean of its divisors is an integer number (348693613632).

Almost surely, 2^{2557086499902} is an apocalyptic number.

2557086499902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2557086499902 is an abundant number, since it is smaller than the sum of its proper divisors (3022011318210).

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

2557086499902 is a wasteful number, since it uses less digits than its factorization.

2557086499902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38743734863.

The product of its (nonzero) digits is 97977600, while the sum is 66.

The spelling of 2557086499902 in words is "two trillion, five hundred fifty-seven billion, eighty-six million, four hundred ninety-nine thousand, nine hundred two".