53644231044 has 24 divisors (see below), whose sum is σ = 139077636320. Its totient is φ = 17881410312.

The previous prime is 53644231037. The next prime is 53644231049. The reversal of 53644231044 is 44013244635.

53644231044 is a `hidden beast` number, since 5 + 3 + 644 + 2 + 3 + 1 + 0 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (53644231049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248352814 + ... + 248353029.

Almost surely, 2^53644231044 is an apocalyptic number.

53644231044 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

53644231044 is an abundant number, since it is smaller than the sum of its proper divisors (85433405276).

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

53644231044 is a wasteful number, since it uses less digits than its factorization.

53644231044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496705856 (or 496705848 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 53644231044 its reverse (44013244635), we get a palindrome (97657475679).

The spelling of 53644231044 in words is "fifty-three billion, six hundred forty-four million, two hundred thirty-one thousand, forty-four".