2621250645 has 32 divisors (see below), whose sum is σ = 4519200000. Its totient is φ = 1289723904.

The previous prime is 2621250623. The next prime is 2621250649. The reversal of 2621250645 is 5460521262.

2621250645 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 2621250645 - 2⁵ = 2621250613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2621250649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 521856 + ... + 526854.

It is an arithmetic number, because the mean of its divisors is an integer number (141225000).

Almost surely, 2^2621250645 is an apocalyptic number.

It is an amenable number.

2621250645 is a deficient number, since it is larger than the sum of its proper divisors (1897949355).

2621250645 is a wasteful number, since it uses less digits than its factorization.

2621250645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 2621250645 is about 51198.1507966841. The cubic root of 2621250645 is about 1378.8050015224.

The spelling of 2621250645 in words is "two billion, six hundred twenty-one million, two hundred fifty thousand, six hundred forty-five".