2975881988 has 6 divisors (see below), whose sum is σ = 5207793486. Its totient is φ = 1487940992.

The previous prime is 2975881969. The next prime is 2975882003. The reversal of 2975881988 is 8891885792.

It can be written as a sum of positive squares in only one way, i.e., 2788684864 + 187197124 = 52808^2 + 13682^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371985245 + ... + 371985252.

It is an arithmetic number, because the mean of its divisors is an integer number (867965581).

Almost surely, 2^2975881988 is an apocalyptic number.

It is an amenable number.

2975881988 is a deficient number, since it is larger than the sum of its proper divisors (2231911498).

2975881988 is a wasteful number, since it uses less digits than its factorization.

2975881988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743970501 (or 743970499 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 65.

The square root of 2975881988 is about 54551.6451447617. The cubic root of 2975881988 is about 1438.3742564228.

The spelling of 2975881988 in words is "two billion, nine hundred seventy-five million, eight hundred eighty-one thousand, nine hundred eighty-eight".