28522116368744 has 16 divisors (see below), whose sum is σ = 53595990010500. Its totient is φ = 14229852365952.

The previous prime is 28522116368719. The next prime is 28522116368747. The reversal of 28522116368744 is 44786361122582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26963738646244 + 1558377722500 = 5192662^2 + 1248350^2 .

It is a super-2 number, since 2×28522116368744² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28522116368747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900723419 + ... + 3900730730.

Almost surely, 2^{28522116368744} is an apocalyptic number.

It is an amenable number.

28522116368744 is a deficient number, since it is larger than the sum of its proper divisors (25073873641756).

28522116368744 is a wasteful number, since it uses less digits than its factorization.

28522116368744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7801454612 (or 7801454608 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 59.

The spelling of 28522116368744 in words is "twenty-eight trillion, five hundred twenty-two billion, one hundred sixteen million, three hundred sixty-eight thousand, seven hundred forty-four".