2645580388 has 12 divisors (see below), whose sum is σ = 5050653552. Its totient is φ = 1202536520.

The previous prime is 2645580337. The next prime is 2645580389. The reversal of 2645580388 is 8830855462.

It is not an unprimeable number, because it can be changed into a prime (2645580389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30063370 + ... + 30063457.

It is an arithmetic number, because the mean of its divisors is an integer number (420887796).

Almost surely, 2^2645580388 is an apocalyptic number.

It is an amenable number.

2645580388 is a deficient number, since it is larger than the sum of its proper divisors (2405073164).

2645580388 is a wasteful number, since it uses less digits than its factorization.

2645580388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60126842 (or 60126840 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The square root of 2645580388 is about 51435.2057252618. The cubic root of 2645580388 is about 1383.0577698297.

The spelling of 2645580388 in words is "two billion, six hundred forty-five million, five hundred eighty thousand, three hundred eighty-eight".