53403688939 has 18 divisors (see below), whose sum is σ = 57187597740. Its totient is φ = 49857417216.

The previous prime is 53403688931. The next prime is 53403688981. The reversal of 53403688939 is 93988630435.

It is not a de Polignac number, because 53403688939 - 2³ = 53403688931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53403688931) 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, 46316587 + ... + 46317739.

Almost surely, 2^53403688939 is an apocalyptic number.

53403688939 is a deficient number, since it is larger than the sum of its proper divisors (3783908801).

53403688939 is an equidigital number, since it uses as much as digits as its factorization.

53403688939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 58.

The spelling of 53403688939 in words is "fifty-three billion, four hundred three million, six hundred eighty-eight thousand, nine hundred thirty-nine".