3988872791564 has 6 divisors (see below), whose sum is σ = 6980527385244. Its totient is φ = 1994436395780.

The previous prime is 3988872791557. The next prime is 3988872791573. The reversal of 3988872791564 is 4651972788893.

It is a super-2 number, since 2×3988872791564² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498609098942 + ... + 498609098949.

It is an arithmetic number, because the mean of its divisors is an integer number (1163421230874).

Almost surely, 2^{3988872791564} is an apocalyptic number.

It is an amenable number.

3988872791564 is a deficient number, since it is larger than the sum of its proper divisors (2991654593680).

3988872791564 is a wasteful number, since it uses less digits than its factorization.

3988872791564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997218197895 (or 997218197893 counting only the distinct ones).

The product of its digits is 1463132160, while the sum is 77.

The spelling of 3988872791564 in words is "three trillion, nine hundred eighty-eight billion, eight hundred seventy-two million, seven hundred ninety-one thousand, five hundred sixty-four".