125279264189 has 4 divisors (see below), whose sum is σ = 125282958240. Its totient is φ = 125275570140.

The previous prime is 125279264179. The next prime is 125279264203. The reversal of 125279264189 is 981462972521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125279264189 - 2⁸ = 125279263933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125279264129) 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, 1795679 + ... + 1864140.

It is an arithmetic number, because the mean of its divisors is an integer number (31320739560).

Almost surely, 2^125279264189 is an apocalyptic number.

It is an amenable number.

125279264189 is a deficient number, since it is larger than the sum of its proper divisors (3694051).

125279264189 is an equidigital number, since it uses as much as digits as its factorization.

125279264189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694050.

The product of its digits is 4354560, while the sum is 56.

The spelling of 125279264189 in words is "one hundred twenty-five billion, two hundred seventy-nine million, two hundred sixty-four thousand, one hundred eighty-nine".