3973018600520 has 16 divisors (see below), whose sum is σ = 8939291851260. Its totient is φ = 1589207440192.

The previous prime is 3973018600511. The next prime is 3973018600541. The reversal of 3973018600520 is 250068103793.

It can be written as a sum of positive squares in 2 ways, for example, as 3851665304356 + 121353296164 = 1962566^2 + 348358^2 .

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, 49662732467 + ... + 49662732546.

Almost surely, 2^{3973018600520} is an apocalyptic number.

It is an amenable number.

3973018600520 is an abundant number, since it is smaller than the sum of its proper divisors (4966273250740).

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

3973018600520 is a wasteful number, since it uses less digits than its factorization.

3973018600520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99325465024 (or 99325465020 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 3973018600520 in words is "three trillion, nine hundred seventy-three billion, eighteen million, six hundred thousand, five hundred twenty".