53617997879 has 12 divisors (see below), whose sum is σ = 54023428440. Its totient is φ = 53215113600.

The previous prime is 53617997857. The next prime is 53617997887. The reversal of 53617997879 is 97879971635.

It is not a de Polignac number, because 53617997879 - 2⁸ = 53617997623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53617997809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19223417 + ... + 19226205.

It is an arithmetic number, because the mean of its divisors is an integer number (4501952370).

Almost surely, 2^53617997879 is an apocalyptic number.

53617997879 is a deficient number, since it is larger than the sum of its proper divisors (405430561).

53617997879 is an equidigital number, since it uses as much as digits as its factorization.

53617997879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3602 (or 3361 counting only the distinct ones).

The product of its digits is 180033840, while the sum is 71.

The spelling of 53617997879 in words is "fifty-three billion, six hundred seventeen million, nine hundred ninety-seven thousand, eight hundred seventy-nine".