28200624621 has 32 divisors (see below), whose sum is σ = 41510835072. Its totient is φ = 16922131200.

The previous prime is 28200624587. The next prime is 28200624629. The reversal of 28200624621 is 12642600282.

It is not a de Polignac number, because 28200624621 - 2²⁹ = 27663753709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28200624629) 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, 295071 + ... + 378771.

It is an arithmetic number, because the mean of its divisors is an integer number (1297213596).

Almost surely, 2^28200624621 is an apocalyptic number.

It is an amenable number.

28200624621 is a deficient number, since it is larger than the sum of its proper divisors (13310210451).

28200624621 is a wasteful number, since it uses less digits than its factorization.

28200624621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83933.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 28200624621 in words is "twenty-eight billion, two hundred million, six hundred twenty-four thousand, six hundred twenty-one".