71715476313 has 12 divisors (see below), whose sum is σ = 111557407780. Its totient is φ = 44132600736.

The previous prime is 71715476309. The next prime is 71715476323. The reversal of 71715476313 is 31367451717.

71715476313 is a `hidden beast` number, since 7 + 1 + 7 + 1 + 5 + 4 + 7 + 631 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36661526784 + 35053949529 = 191472^2 + 187227^2 .

It is not a de Polignac number, because 71715476313 - 2² = 71715476309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71715476323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306476278 + ... + 306476511.

Almost surely, 2^71715476313 is an apocalyptic number.

It is an amenable number.

71715476313 is a deficient number, since it is larger than the sum of its proper divisors (39841931467).

71715476313 is a wasteful number, since it uses less digits than its factorization.

71715476313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612952808 (or 612952805 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The spelling of 71715476313 in words is "seventy-one billion, seven hundred fifteen million, four hundred seventy-six thousand, three hundred thirteen".