53643644634635 has 32 divisors (see below), whose sum is σ = 70546993735680. Its totient is φ = 38834383276800.

The previous prime is 53643644634563. The next prime is 53643644634757.

53643644634635 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53643644634635 - 2³² = 53639349667339 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114701951 + ... + 115168679.

It is an arithmetic number, because the mean of its divisors is an integer number (2204593554240).

Almost surely, 2^{53643644634635} is an apocalyptic number.

53643644634635 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53643644634635 is a deficient number, since it is larger than the sum of its proper divisors (16903349101045).

53643644634635 is a wasteful number, since it uses less digits than its factorization.

53643644634635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476339.

The product of its digits is 671846400, while the sum is 62.

It can be divided in two parts, 5364364 and 4634635, that added together give a palindrome (9998999).

The spelling of 53643644634635 in words is "fifty-three trillion, six hundred forty-three billion, six hundred forty-four million, six hundred thirty-four thousand, six hundred thirty-five".