28170533632 has 36 divisors (see below), whose sum is σ = 57427455456. Its totient is φ = 13785574400.

The previous prime is 28170533623. The next prime is 28170533719. The reversal of 28170533632 is 23633507182.

It is a super-2 number, since 2×28170533632² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158619 + ... + 1182682.

It is an arithmetic number, because the mean of its divisors is an integer number (1595207096).

Almost surely, 2^28170533632 is an apocalyptic number.

It is an amenable number.

28170533632 is an abundant number, since it is smaller than the sum of its proper divisors (29256921824).

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

28170533632 is an equidigital number, since it uses as much as digits as its factorization.

28170533632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341364 (or 2341350 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 28170533632 in words is "twenty-eight billion, one hundred seventy million, five hundred thirty-three thousand, six hundred thirty-two".