71680037960 has 16 divisors (see below), whose sum is σ = 161280085500. Its totient is φ = 28672015168.

The previous prime is 71680037921. The next prime is 71680037981. The reversal of 71680037960 is 6973008617.

It can be written as a sum of positive squares in 2 ways, for example, as 71456774596 + 223263364 = 267314^2 + 14942^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896000435 + ... + 896000514.

Almost surely, 2^71680037960 is an apocalyptic number.

It is an amenable number.

71680037960 is an abundant number, since it is smaller than the sum of its proper divisors (89600047540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71680037960 is a wasteful number, since it uses less digits than its factorization.

71680037960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792000960 (or 1792000956 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 71680037960 in words is "seventy-one billion, six hundred eighty million, thirty-seven thousand, nine hundred sixty".