2999640975 has 24 divisors (see below), whose sum is σ = 5080372752. Its totient is φ = 1560787200.

The previous prime is 2999640971. The next prime is 2999640983. The reversal of 2999640975 is 5790469992.

It is not a de Polignac number, because 2999640975 - 2² = 2999640971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999640971) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484672 + ... + 490821.

It is an arithmetic number, because the mean of its divisors is an integer number (211682198).

Almost surely, 2^2999640975 is an apocalyptic number.

2999640975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2999640975 is a deficient number, since it is larger than the sum of its proper divisors (2080731777).

2999640975 is a wasteful number, since it uses less digits than its factorization.

2999640975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975547 (or 975542 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 60.

The square root of 2999640975 is about 54768.9782176005. The cubic root of 2999640975 is about 1442.1920342730.

The spelling of 2999640975 in words is "two billion, nine hundred ninety-nine million, six hundred forty thousand, nine hundred seventy-five".