2999018879 has 4 divisors (see below), whose sum is σ = 2999175120. Its totient is φ = 2998862640.

The previous prime is 2999018857. The next prime is 2999018903. The reversal of 2999018879 is 9788109992.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2999018879 - 2⁸ = 2999018623 is a prime.

It is a super-2 number, since 2×2999018879² = 17988228473196833282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2999018809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44507 + ... + 89324.

It is an arithmetic number, because the mean of its divisors is an integer number (749793780).

Almost surely, 2^2999018879 is an apocalyptic number.

2999018879 is a deficient number, since it is larger than the sum of its proper divisors (156241).

2999018879 is a wasteful number, since it uses less digits than its factorization.

2999018879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156240.

The product of its (nonzero) digits is 5878656, while the sum is 62.

The square root of 2999018879 is about 54763.2986497344. The cubic root of 2999018879 is about 1442.0923285713.

The spelling of 2999018879 in words is "two billion, nine hundred ninety-nine million, eighteen thousand, eight hundred seventy-nine".