2639290845 has 16 divisors (see below), whose sum is σ = 4336997760. Its totient is φ = 1369577664.

The previous prime is 2639290813. The next prime is 2639290847. The reversal of 2639290845 is 5480929362.

It is a happy number.

2639290845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2639290845 - 2⁵ = 2639290813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2639290794 and 2639290803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2639290847) 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, 2377185 + ... + 2378294.

It is an arithmetic number, because the mean of its divisors is an integer number (271062360).

Almost surely, 2^2639290845 is an apocalyptic number.

It is an amenable number.

2639290845 is a deficient number, since it is larger than the sum of its proper divisors (1697706915).

2639290845 is a wasteful number, since it uses less digits than its factorization.

2639290845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755524.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 2639290845 is about 51374.0288959315. The cubic root of 2639290845 is about 1381.9608833748.

The spelling of 2639290845 in words is "two billion, six hundred thirty-nine million, two hundred ninety thousand, eight hundred forty-five".