2539591872 has 56 divisors (see below), whose sum is σ = 6781038000. Its totient is φ = 838757376.

The previous prime is 2539591871. The next prime is 2539591877. The reversal of 2539591872 is 2781959352.

It is not an unprimeable number, because it can be changed into a prime (2539591871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39747 + ... + 81602.

Almost surely, 2^2539591872 is an apocalyptic number.

It is an amenable number.

2539591872 is an abundant number, since it is smaller than the sum of its proper divisors (4241446128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2539591872 is a wasteful number, since it uses less digits than its factorization.

2539591872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121473 (or 121463 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 2539591872 is about 50394.3634943433. The cubic root of 2539591872 is about 1364.3359079594.

The spelling of 2539591872 in words is "two billion, five hundred thirty-nine million, five hundred ninety-one thousand, eight hundred seventy-two".