2539012779 has 12 divisors (see below), whose sum is σ = 3766584016. Its totient is φ = 1646926992.

The previous prime is 2539012759. The next prime is 2539012799. The reversal of 2539012779 is 9772109352.

2539012779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2539012759) and next prime (2539012799).

It is not a de Polignac number, because 2539012779 - 2¹² = 2539008683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2539012759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3811999 + ... + 3812664.

Almost surely, 2^2539012779 is an apocalyptic number.

2539012779 is a deficient number, since it is larger than the sum of its proper divisors (1227571237).

2539012779 is a wasteful number, since it uses less digits than its factorization.

2539012779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624706 (or 7624703 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 2539012779 is about 50388.6175539675. The cubic root of 2539012779 is about 1364.2321987187.

The spelling of 2539012779 in words is "two billion, five hundred thirty-nine million, twelve thousand, seven hundred seventy-nine".