2557818181468 has 12 divisors (see below), whose sum is σ = 4883107437432. Its totient is φ = 1162644627920.

The previous prime is 2557818181421. The next prime is 2557818181537. The reversal of 2557818181468 is 8641818187552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29066115655 + ... + 29066115742.

It is an arithmetic number, because the mean of its divisors is an integer number (406925619786).

Almost surely, 2^{2557818181468} is an apocalyptic number.

It is an amenable number.

2557818181468 is a deficient number, since it is larger than the sum of its proper divisors (2325289255964).

2557818181468 is a wasteful number, since it uses less digits than its factorization.

2557818181468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58132231412 (or 58132231410 counting only the distinct ones).

The product of its digits is 34406400, while the sum is 64.

The spelling of 2557818181468 in words is "two trillion, five hundred fifty-seven billion, eight hundred eighteen million, one hundred eighty-one thousand, four hundred sixty-eight".