71328298815 has 32 divisors (see below), whose sum is σ = 130896384000. Its totient is φ = 36814603680.

The previous prime is 71328298807. The next prime is 71328298859. The reversal of 71328298815 is 51889282317.

It is not a de Polignac number, because 71328298815 - 2³ = 71328298807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8517715 + ... + 8526084.

It is an arithmetic number, because the mean of its divisors is an integer number (4090512000).

Almost surely, 2^71328298815 is an apocalyptic number.

71328298815 is a deficient number, since it is larger than the sum of its proper divisors (59568085185).

71328298815 is a wasteful number, since it uses less digits than its factorization.

71328298815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17043844 (or 17043838 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The spelling of 71328298815 in words is "seventy-one billion, three hundred twenty-eight million, two hundred ninety-eight thousand, eight hundred fifteen".