31912070919479 has 2 divisors, whose sum is σ = 31912070919480. Its totient is φ = 31912070919478.

The previous prime is 31912070919401. The next prime is 31912070919493. The reversal of 31912070919479 is 97491907021913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31912070919479 - 2³⁶ = 31843351442743 is a prime.

It is a super-3 number, since 3×31912070919479³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31912070919779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15956035459739 + 15956035459740.

It is an arithmetic number, because the mean of its divisors is an integer number (15956035459740).

Almost surely, 2^{31912070919479} is an apocalyptic number.

31912070919479 is a deficient number, since it is larger than the sum of its proper divisors (1).

31912070919479 is an equidigital number, since it uses as much as digits as its factorization.

31912070919479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7715736, while the sum is 62.

The spelling of 31912070919479 in words is "thirty-one trillion, nine hundred twelve billion, seventy million, nine hundred nineteen thousand, four hundred seventy-nine".