71373396964 has 45 divisors (see below), whose sum is σ = 130002107235. Its totient is φ = 34287057720.

The previous prime is 71373396949. The next prime is 71373397003. The reversal of 71373396964 is 46969337317.

It is a happy number.

The square root of 71373396964 is 267158.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71373396899 and 71373396908.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 513477607 + ... + 513477745.

Almost surely, 2^71373396964 is an apocalyptic number.

71373396964 is the 267158-th square number.

It is an amenable number.

71373396964 is a deficient number, since it is larger than the sum of its proper divisors (58628710271).

71373396964 is an frugal number, since it uses more digits than its factorization.

71373396964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 172 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 58.

The spelling of 71373396964 in words is "seventy-one billion, three hundred seventy-three million, three hundred ninety-six thousand, nine hundred sixty-four".