9974815876 has 9 divisors (see below), whose sum is σ = 17456277349. Its totient is φ = 4987308064.

The previous prime is 9974815847. The next prime is 9974815931. The reversal of 9974815876 is 6785184799.

The square root of 9974815876 is 99874.

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

It can be written as a sum of positive squares in only one way, i.e., 2120602500 + 7854213376 = 46050^2 + 88624^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 174780 + ... + 224716.

Almost surely, 2^9974815876 is an apocalyptic number.

9974815876 is the 99874-th square number.

It is an amenable number.

9974815876 is a deficient number, since it is larger than the sum of its proper divisors (7481461473).

9974815876 is an frugal number, since it uses more digits than its factorization.

9974815876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99878 (or 49939 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 64.

The cubic root of 9974815876 is about 2152.6245846370.

Multiplying 9974815876 by its sum of digits (64), we get a square (638388216064 = 798992²).

The spelling of 9974815876 in words is "nine billion, nine hundred seventy-four million, eight hundred fifteen thousand, eight hundred seventy-six".