2625545036621 has 16 divisors (see below), whose sum is σ = 2987792693760. Its totient is φ = 2288862576000.

The previous prime is 2625545036603. The next prime is 2625545036687. The reversal of 2625545036621 is 1266305455262.

It is not a de Polignac number, because 2625545036621 - 2³⁴ = 2608365167437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625545033621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55552880 + ... + 55600121.

It is an arithmetic number, because the mean of its divisors is an integer number (186737043360).

Almost surely, 2^{2625545036621} is an apocalyptic number.

It is an amenable number.

2625545036621 is a deficient number, since it is larger than the sum of its proper divisors (362247657139).

2625545036621 is a wasteful number, since it uses less digits than its factorization.

2625545036621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111153116.

The product of its (nonzero) digits is 2592000, while the sum is 47.

The spelling of 2625545036621 in words is "two trillion, six hundred twenty-five billion, five hundred forty-five million, thirty-six thousand, six hundred twenty-one".