53715131691 has 16 divisors (see below), whose sum is σ = 77144261376. Its totient is φ = 33049105056.

The previous prime is 53715131689. The next prime is 53715131713. The reversal of 53715131691 is 19613151735.

It is not a de Polignac number, because 53715131691 - 2¹ = 53715131689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53715138691) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 76956 + ... + 336678.

It is an arithmetic number, because the mean of its divisors is an integer number (4821516336).

Almost surely, 2^53715131691 is an apocalyptic number.

53715131691 is a deficient number, since it is larger than the sum of its proper divisors (23429129685).

53715131691 is a wasteful number, since it uses less digits than its factorization.

53715131691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265042.

The product of its digits is 85050, while the sum is 42.

The spelling of 53715131691 in words is "fifty-three billion, seven hundred fifteen million, one hundred thirty-one thousand, six hundred ninety-one".