2639279137 has 8 divisors (see below), whose sum is σ = 2879629920. Its totient is φ = 2398997760.

The previous prime is 2639279129. The next prime is 2639279161. The reversal of 2639279137 is 7319729362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2639279137 - 2³ = 2639279129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2639279197) 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, 92353 + ... + 117505.

It is an arithmetic number, because the mean of its divisors is an integer number (359953740).

Almost surely, 2^2639279137 is an apocalyptic number.

It is an amenable number.

2639279137 is a deficient number, since it is larger than the sum of its proper divisors (240350783).

2639279137 is a wasteful number, since it uses less digits than its factorization.

2639279137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34703.

The product of its digits is 857304, while the sum is 49.

The square root of 2639279137 is about 51373.9149471792. The cubic root of 2639279137 is about 1381.9588398938.

The spelling of 2639279137 in words is "two billion, six hundred thirty-nine million, two hundred seventy-nine thousand, one hundred thirty-seven".