28165711364 has 18 divisors (see below), whose sum is σ = 57337341390. Its totient is φ = 12071019072.

The previous prime is 28165711361. The next prime is 28165711373. The reversal of 28165711364 is 46311756182.

It can be written as a sum of positive squares in only one way, i.e., 27074069764 + 1091641600 = 164542^2 + 33040^2 .

It is not an unprimeable number, because it can be changed into a prime (28165711361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71851109 + ... + 71851500.

It is an arithmetic number, because the mean of its divisors is an integer number (3185407855).

Almost surely, 2^28165711364 is an apocalyptic number.

It is an amenable number.

28165711364 is an abundant number, since it is smaller than the sum of its proper divisors (29171630026).

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

28165711364 is a wasteful number, since it uses less digits than its factorization.

28165711364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143702627 (or 143702618 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 28165711364 in words is "twenty-eight billion, one hundred sixty-five million, seven hundred eleven thousand, three hundred sixty-four".