31930473467 has 2 divisors, whose sum is σ = 31930473468. Its totient is φ = 31930473466.

The previous prime is 31930473437. The next prime is 31930473569. The reversal of 31930473467 is 76437403913.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31930473467 is a prime.

It is not a weakly prime, because it can be changed into another prime (31930473437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15965236733 + 15965236734.

It is an arithmetic number, because the mean of its divisors is an integer number (15965236734).

Almost surely, 2^31930473467 is an apocalyptic number.

31930473467 is a deficient number, since it is larger than the sum of its proper divisors (1).

31930473467 is an equidigital number, since it uses as much as digits as its factorization.

31930473467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 47.

The spelling of 31930473467 in words is "thirty-one billion, nine hundred thirty million, four hundred seventy-three thousand, four hundred sixty-seven".