53440911738 has 24 divisors (see below), whose sum is σ = 116935068276. Its totient is φ = 17637264000.

The previous prime is 53440911703. The next prime is 53440911763. The reversal of 53440911738 is 83711904435.

53440911738 is a `hidden beast` number, since 53 + 440 + 91 + 1 + 73 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51287302089 + 2153609649 = 226467^2 + 46407^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53440911693 and 53440911702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14695903 + ... + 14699538.

Almost surely, 2^53440911738 is an apocalyptic number.

53440911738 is an abundant number, since it is smaller than the sum of its proper divisors (63494156538).

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

53440911738 is a wasteful number, since it uses less digits than its factorization.

53440911738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29395550 (or 29395547 counting only the distinct ones).

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

The spelling of 53440911738 in words is "fifty-three billion, four hundred forty million, nine hundred eleven thousand, seven hundred thirty-eight".