23273775251 has 4 divisors (see below), whose sum is σ = 24642820872. Its totient is φ = 21904729632.

The previous prime is 23273775197. The next prime is 23273775313. The reversal of 23273775251 is 15257737232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23273775251 - 2²⁶ = 23206666387 is a prime.

It is a super-2 number, since 2×23273775251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23273775751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684522785 + ... + 684522818.

It is an arithmetic number, because the mean of its divisors is an integer number (6160705218).

Almost surely, 2^23273775251 is an apocalyptic number.

23273775251 is a deficient number, since it is larger than the sum of its proper divisors (1369045621).

23273775251 is a wasteful number, since it uses less digits than its factorization.

23273775251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369045620.

The product of its digits is 617400, while the sum is 44.

The spelling of 23273775251 in words is "twenty-three billion, two hundred seventy-three million, seven hundred seventy-five thousand, two hundred fifty-one".