53971434018 has 12 divisors (see below), whose sum is σ = 116938107078. Its totient is φ = 17990478000.

The previous prime is 53971434017. The next prime is 53971434037. The reversal of 53971434018 is 81043417935.

53971434018 is a `hidden beast` number, since 539 + 71 + 4 + 3 + 40 + 1 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 41165569449 + 12805864569 = 202893^2 + 113163^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53971434017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1499206483 + ... + 1499206518.

Almost surely, 2^53971434018 is an apocalyptic number.

53971434018 is an abundant number, since it is smaller than the sum of its proper divisors (62966673060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53971434018 is a wasteful number, since it uses less digits than its factorization.

53971434018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998413009 (or 2998413006 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 53971434018 in words is "fifty-three billion, nine hundred seventy-one million, four hundred thirty-four thousand, eighteen".