47917965231 has 16 divisors (see below), whose sum is σ = 71052501600. Its totient is φ = 31916994624.

The previous prime is 47917965181. The next prime is 47917965247. The reversal of 47917965231 is 13256971974.

47917965231 is a `hidden beast` number, since 47 + 9 + 1 + 79 + 6 + 523 + 1 = 666.

47917965231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47917965231 - 2¹⁵ = 47917932463 is a prime.

It is a super-2 number, since 2×47917965231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47917965731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 755496 + ... + 816461.

It is an arithmetic number, because the mean of its divisors is an integer number (4440781350).

Almost surely, 2^47917965231 is an apocalyptic number.

47917965231 is a deficient number, since it is larger than the sum of its proper divisors (23134536369).

47917965231 is a wasteful number, since it uses less digits than its factorization.

47917965231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573095 (or 1573089 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The spelling of 47917965231 in words is "forty-seven billion, nine hundred seventeen million, nine hundred sixty-five thousand, two hundred thirty-one".