2315099979 has 6 divisors (see below), whose sum is σ = 3344033316. Its totient is φ = 1543399980.

The previous prime is 2315099971. The next prime is 2315099981. The reversal of 2315099979 is 9799905132.

It is not a de Polignac number, because 2315099979 - 2³ = 2315099971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2315099971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128616657 + ... + 128616674.

It is an arithmetic number, because the mean of its divisors is an integer number (557338886).

Almost surely, 2^2315099979 is an apocalyptic number.

2315099979 is a deficient number, since it is larger than the sum of its proper divisors (1028933337).

2315099979 is a wasteful number, since it uses less digits than its factorization.

2315099979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257233337 (or 257233334 counting only the distinct ones).

The product of its (nonzero) digits is 1377810, while the sum is 54.

The square root of 2315099979 is about 48115.4858543484. The cubic root of 2315099979 is about 1322.8885281344. Note that the first 3 decimals are identical.

The spelling of 2315099979 in words is "two billion, three hundred fifteen million, ninety-nine thousand, nine hundred seventy-nine".