2557086499893 has 4 divisors (see below), whose sum is σ = 3409448666528. Its totient is φ = 1704724333260.

The previous prime is 2557086499853. The next prime is 2557086499901. The reversal of 2557086499893 is 3989946807552.

2557086499893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2557086499893 - 2⁸ = 2557086499637 is a prime.

It is a super-2 number, since 2×2557086499893² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557086499853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426181083313 + ... + 426181083318.

It is an arithmetic number, because the mean of its divisors is an integer number (852362166632).

Almost surely, 2^{2557086499893} is an apocalyptic number.

It is an amenable number.

2557086499893 is a deficient number, since it is larger than the sum of its proper divisors (852362166635).

2557086499893 is an equidigital number, since it uses as much as digits as its factorization.

2557086499893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852362166634.

The product of its (nonzero) digits is 1175731200, while the sum is 75.

The spelling of 2557086499893 in words is "two trillion, five hundred fifty-seven billion, eighty-six million, four hundred ninety-nine thousand, eight hundred ninety-three".