50731397361 has 32 divisors (see below), whose sum is σ = 75618385920. Its totient is φ = 33614195472.

The previous prime is 50731397329. The next prime is 50731397383. The reversal of 50731397361 is 16379313705.

50731397361 is a `hidden beast` number, since 507 + 3 + 13 + 9 + 73 + 61 = 666.

It is not a de Polignac number, because 50731397361 - 2⁵ = 50731397329 is a prime.

It is a super-3 number, since 3×50731397361³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (50731397861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3137680 + ... + 3153806.

It is an arithmetic number, because the mean of its divisors is an integer number (2363074560).

Almost surely, 2^50731397361 is an apocalyptic number.

It is an amenable number.

50731397361 is a deficient number, since it is larger than the sum of its proper divisors (24886988559).

50731397361 is a wasteful number, since it uses less digits than its factorization.

50731397361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16842 (or 16836 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 45.

The spelling of 50731397361 in words is "fifty billion, seven hundred thirty-one million, three hundred ninety-seven thousand, three hundred sixty-one".