53657877879 has 24 divisors (see below), whose sum is σ = 81276801840. Its totient is φ = 34065263232.

The previous prime is 53657877857. The next prime is 53657877887. The reversal of 53657877879 is 97877875635.

53657877879 is a `hidden beast` number, since 536 + 5 + 7 + 8 + 7 + 7 + 87 + 9 = 666.

It is not a de Polignac number, because 53657877879 - 2¹³ = 53657869687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53657877379) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1389069 + ... + 1427174.

It is an arithmetic number, because the mean of its divisors is an integer number (3386533410).

Almost surely, 2^53657877879 is an apocalyptic number.

53657877879 is a deficient number, since it is larger than the sum of its proper divisors (27618923961).

53657877879 is a wasteful number, since it uses less digits than its factorization.

53657877879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816351 (or 2816348 counting only the distinct ones).

The product of its digits is 622339200, while the sum is 72.

The spelling of 53657877879 in words is "fifty-three billion, six hundred fifty-seven million, eight hundred seventy-seven thousand, eight hundred seventy-nine".