31680051467 has 2 divisors, whose sum is σ = 31680051468. Its totient is φ = 31680051466.

The previous prime is 31680051457. The next prime is 31680051499. The reversal of 31680051467 is 76415008613.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31680051467 - 2²⁰ = 31679002891 is a prime.

It is not a weakly prime, because it can be changed into another prime (31680051457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15840025733 + 15840025734.

It is an arithmetic number, because the mean of its divisors is an integer number (15840025734).

Almost surely, 2^31680051467 is an apocalyptic number.

31680051467 is a deficient number, since it is larger than the sum of its proper divisors (1).

31680051467 is an equidigital number, since it uses as much as digits as its factorization.

31680051467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 31680051467 in words is "thirty-one billion, six hundred eighty million, fifty-one thousand, four hundred sixty-seven".