53998174977945 has 128 divisors (see below), whose sum is σ = 98079264239616. Its totient is φ = 25138753920000.

The previous prime is 53998174977919. The next prime is 53998174977953. The reversal of 53998174977945 is 54977947189935.

It is not a de Polignac number, because 53998174977945 - 2⁸ = 53998174977689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 792413575 + ... + 792481715.

It is an arithmetic number, because the mean of its divisors is an integer number (766244251872).

Almost surely, 2^{53998174977945} is an apocalyptic number.

53998174977945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53998174977945 is a deficient number, since it is larger than the sum of its proper divisors (44081089261671).

53998174977945 is a wasteful number, since it uses less digits than its factorization.

53998174977945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70095.

The product of its digits is 21604060800, while the sum is 87.

The spelling of 53998174977945 in words is "fifty-three trillion, nine hundred ninety-eight billion, one hundred seventy-four million, nine hundred seventy-seven thousand, nine hundred forty-five".