2639972212 has 12 divisors (see below), whose sum is σ = 4624492320. Its totient is φ = 1318688696.

The previous prime is 2639972207. The next prime is 2639972221. The reversal of 2639972212 is 2122799362.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319768 + ... + 327919.

It is an arithmetic number, because the mean of its divisors is an integer number (385374360).

Almost surely, 2^2639972212 is an apocalyptic number.

It is an amenable number.

2639972212 is a deficient number, since it is larger than the sum of its proper divisors (1984520108).

2639972212 is a wasteful number, since it uses less digits than its factorization.

2639972212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648710 (or 648708 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 2639972212 is about 51380.6599023407. The cubic root of 2639972212 is about 1382.0797968226.

The spelling of 2639972212 in words is "two billion, six hundred thirty-nine million, nine hundred seventy-two thousand, two hundred twelve".