28858132161645 has 32 divisors (see below), whose sum is σ = 46664827408512. Its totient is φ = 15227437347072.

The previous prime is 28858132161619. The next prime is 28858132161701. The reversal of 28858132161645 is 54616123185882.

It is not a de Polignac number, because 28858132161645 - 2⁶ = 28858132161581 is a prime.

It is a super-3 number, since 3×28858132161645³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10389442 + ... + 12870771.

It is an arithmetic number, because the mean of its divisors is an integer number (1458275856516).

Almost surely, 2^{28858132161645} is an apocalyptic number.

It is an amenable number.

28858132161645 is a deficient number, since it is larger than the sum of its proper divisors (17806695246867).

28858132161645 is a wasteful number, since it uses less digits than its factorization.

28858132161645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23261101.

The product of its digits is 22118400, while the sum is 60.

The spelling of 28858132161645 in words is "twenty-eight trillion, eight hundred fifty-eight billion, one hundred thirty-two million, one hundred sixty-one thousand, six hundred forty-five".