2639130761 has 16 divisors (see below), whose sum is σ = 2883254400. Its totient is φ = 2406096000.

The previous prime is 2639130757. The next prime is 2639130803. The reversal of 2639130761 is 1670319362.

It is a happy number.

2639130761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2639130761 - 2² = 2639130757 is a prime.

It is a super-2 number, since 2×2639130761² = 13930022347312878242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2639130751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163661 + ... + 179061.

It is an arithmetic number, because the mean of its divisors is an integer number (180203400).

Almost surely, 2^2639130761 is an apocalyptic number.

It is an amenable number.

2639130761 is a deficient number, since it is larger than the sum of its proper divisors (244123639).

2639130761 is a wasteful number, since it uses less digits than its factorization.

2639130761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15760.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 2639130761 is about 51372.4708477215. The cubic root of 2639130761 is about 1381.9329422457.

The spelling of 2639130761 in words is "two billion, six hundred thirty-nine million, one hundred thirty thousand, seven hundred sixty-one".