7671815972 has 24 divisors (see below), whose sum is σ = 14343231840. Its totient is φ = 3579776640.

The previous prime is 7671815971. The next prime is 7671816007. The reversal of 7671815972 is 2795181767.

It is not an unprimeable number, because it can be changed into a prime (7671815971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748229 + ... + 758412.

It is an arithmetic number, because the mean of its divisors is an integer number (597634660).

Almost surely, 2^7671815972 is an apocalyptic number.

It is an amenable number.

7671815972 is a deficient number, since it is larger than the sum of its proper divisors (6671415868).

7671815972 is a wasteful number, since it uses less digits than its factorization.

7671815972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506731 (or 1506729 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 53.

The square root of 7671815972 is about 87588.9032469296. The cubic root of 7671815972 is about 1972.2685927176.

The spelling of 7671815972 in words is "seven billion, six hundred seventy-one million, eight hundred fifteen thousand, nine hundred seventy-two".