2639901412 has 12 divisors (see below), whose sum is σ = 4620192556. Its totient is φ = 1319846400.

The previous prime is 2639901377. The next prime is 2639901413. The reversal of 2639901412 is 2141099362.

It can be written as a sum of positive squares in 2 ways, for example, as 1478863936 + 1161037476 = 38456^2 + 34074^2 .

It is not an unprimeable number, because it can be changed into a prime (2639901413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71128 + ... + 101680.

Almost surely, 2^2639901412 is an apocalyptic number.

It is an amenable number.

2639901412 is a deficient number, since it is larger than the sum of its proper divisors (1980291144).

2639901412 is a wasteful number, since it uses less digits than its factorization.

2639901412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52158 (or 52156 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2639901412 is about 51379.9709225297. The cubic root of 2639901412 is about 1382.0674416263.

The spelling of 2639901412 in words is "two billion, six hundred thirty-nine million, nine hundred one thousand, four hundred twelve".