2498689171557 has 64 divisors (see below), whose sum is σ = 3782679264000. Its totient is φ = 1629880233984.

The previous prime is 2498689171549. The next prime is 2498689171591. The reversal of 2498689171557 is 7551719868942.

It is a happy number.

2498689171557 is a `hidden beast` number, since 2 + 4 + 9 + 8 + 68 + 9 + 1 + 7 + 1 + 557 = 666.

It is not a de Polignac number, because 2498689171557 - 2³ = 2498689171549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2498689271557) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81087169 + ... + 81117977.

It is an arithmetic number, because the mean of its divisors is an integer number (59104363500).

Almost surely, 2^{2498689171557} is an apocalyptic number.

2498689171557 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2498689171557 is a deficient number, since it is larger than the sum of its proper divisors (1283990092443).

2498689171557 is a wasteful number, since it uses less digits than its factorization.

2498689171557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31267 (or 31261 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 72.

The spelling of 2498689171557 in words is "two trillion, four hundred ninety-eight billion, six hundred eighty-nine million, one hundred seventy-one thousand, five hundred fifty-seven".