53947231191 has 24 divisors (see below), whose sum is σ = 90275696160. Its totient is φ = 30404699136.

The previous prime is 53947231187. The next prime is 53947231213. The reversal of 53947231191 is 19113274935.

53947231191 is a `hidden beast` number, since 5 + 394 + 72 + 3 + 1 + 191 = 666.

It is not a de Polignac number, because 53947231191 - 2² = 53947231187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53947231111) 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, 5860506 + ... + 5869703.

It is an arithmetic number, because the mean of its divisors is an integer number (3761487340).

Almost surely, 2^53947231191 is an apocalyptic number.

53947231191 is a deficient number, since it is larger than the sum of its proper divisors (36328464969).

53947231191 is a wasteful number, since it uses less digits than its factorization.

53947231191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730295 (or 11730292 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The spelling of 53947231191 in words is "fifty-three billion, nine hundred forty-seven million, two hundred thirty-one thousand, one hundred ninety-one".