28551602632 has 256 divisors, whose sum is σ = 69330240000. Its totient is φ = 11003973120.

The previous prime is 28551602627. The next prime is 28551602657. The reversal of 28551602632 is 23620615582.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 696380532 + ... + 696380572.

It is an arithmetic number, because the mean of its divisors is an integer number (270821250).

Almost surely, 2^28551602632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28551602632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34665120000).

28551602632 is an abundant number, since it is smaller than the sum of its proper divisors (40778637368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28551602632 is an equidigital number, since it uses as much as digits as its factorization.

28551602632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 28551602632 in words is "twenty-eight billion, five hundred fifty-one million, six hundred two thousand, six hundred thirty-two".