28382999865432 has 16 divisors (see below), whose sum is σ = 70957499663640. Its totient is φ = 9460999955136.

The previous prime is 28382999865419. The next prime is 28382999865461. The reversal of 28382999865432 is 23456899928382.

It is a super-2 number, since 2×28382999865432² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 591312497173 + ... + 591312497220.

Almost surely, 2^{28382999865432} is an apocalyptic number.

It is an amenable number.

28382999865432 is an abundant number, since it is smaller than the sum of its proper divisors (42574499798208).

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

28382999865432 is a wasteful number, since it uses less digits than its factorization.

28382999865432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182624994402 (or 1182624994398 counting only the distinct ones).

The product of its digits is 3224862720, while the sum is 78.

The spelling of 28382999865432 in words is "twenty-eight trillion, three hundred eighty-two billion, nine hundred ninety-nine million, eight hundred sixty-five thousand, four hundred thirty-two".