53183218979 has 18 divisors (see below), whose sum is σ = 59976719388. Its totient is φ = 46767895800.

The previous prime is 53183218967. The next prime is 53183219009. The reversal of 53183218979 is 97981238135.

53183218979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53183218979 - 2³² = 48888251683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53183218679) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23709632 + ... + 23711874.

It is an arithmetic number, because the mean of its divisors is an integer number (3332039966).

Almost surely, 2^53183218979 is an apocalyptic number.

53183218979 is a deficient number, since it is larger than the sum of its proper divisors (6793500409).

53183218979 is an frugal number, since it uses more digits than its factorization.

53183218979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559 (or 2285 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 56.

The spelling of 53183218979 in words is "fifty-three billion, one hundred eighty-three million, two hundred eighteen thousand, nine hundred seventy-nine".