28152161253 has 64 divisors (see below), whose sum is σ = 44047872000. Its totient is φ = 17735889600.

The previous prime is 28152161231. The next prime is 28152161267. The reversal of 28152161253 is 35216125182.

28152161253 is a `hidden beast` number, since 2 + 8 + 1 + 521 + 6 + 125 + 3 = 666.

It is not a de Polignac number, because 28152161253 - 2⁵ = 28152161221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28152161203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19401178 + ... + 19402628.

It is an arithmetic number, because the mean of its divisors is an integer number (688248000).

Almost surely, 2^28152161253 is an apocalyptic number.

28152161253 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28152161253 is a deficient number, since it is larger than the sum of its proper divisors (15895710747).

28152161253 is a wasteful number, since it uses less digits than its factorization.

28152161253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839 (or 1833 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The spelling of 28152161253 in words is "twenty-eight billion, one hundred fifty-two million, one hundred sixty-one thousand, two hundred fifty-three".