53403613479 has 24 divisors (see below), whose sum is σ = 79658841600. Its totient is φ = 34440120720.

The previous prime is 53403613447. The next prime is 53403613499. The reversal of 53403613479 is 97431630435.

53403613479 is a `hidden beast` number, since 534 + 0 + 36 + 13 + 4 + 79 = 666.

It is not a de Polignac number, because 53403613479 - 2⁵ = 53403613447 is a prime.

It is a super-2 number, since 2×53403613479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53403613409) 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, 682432 + ... + 756650.

It is an arithmetic number, because the mean of its divisors is an integer number (3319118400).

Almost surely, 2^53403613479 is an apocalyptic number.

53403613479 is a deficient number, since it is larger than the sum of its proper divisors (26255228121).

53403613479 is a wasteful number, since it uses less digits than its factorization.

53403613479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76835 (or 76832 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 53403613479 in words is "fifty-three billion, four hundred three million, six hundred thirteen thousand, four hundred seventy-nine".