28158160023 has 24 divisors (see below), whose sum is σ = 47431956000. Its totient is φ = 16090375392.

The previous prime is 28158159983. The next prime is 28158160081. The reversal of 28158160023 is 32006185182.

It is a happy number.

28158160023 is a `hidden beast` number, since 28 + 1 + 5 + 8 + 1 + 600 + 23 = 666.

It is not a de Polignac number, because 28158160023 - 2²⁰ = 28157111447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28158160023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28158168023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4557678 + ... + 4563851.

It is an arithmetic number, because the mean of its divisors is an integer number (1976331500).

Almost surely, 2^28158160023 is an apocalyptic number.

28158160023 is a deficient number, since it is larger than the sum of its proper divisors (19273795977).

28158160023 is an equidigital number, since it uses as much as digits as its factorization.

28158160023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9121556 (or 9121539 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 28158160023 in words is "twenty-eight billion, one hundred fifty-eight million, one hundred sixty thousand, twenty-three".