28327396417 has 16 divisors (see below), whose sum is σ = 30135888000. Its totient is φ = 26584776064.

The previous prime is 28327396399. The next prime is 28327396421. The reversal of 28327396417 is 71469372382.

It is not a de Polignac number, because 28327396417 - 2²³ = 28319007809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28327396477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59268 + ... + 245290.

It is an arithmetic number, because the mean of its divisors is an integer number (1883493000).

Almost surely, 2^28327396417 is an apocalyptic number.

It is an amenable number.

28327396417 is a deficient number, since it is larger than the sum of its proper divisors (1808491583).

28327396417 is a wasteful number, since it uses less digits than its factorization.

28327396417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186200.

The product of its digits is 3048192, while the sum is 52.

The spelling of 28327396417 in words is "twenty-eight billion, three hundred twenty-seven million, three hundred ninety-six thousand, four hundred seventeen".