125423626163 has 4 divisors (see below), whose sum is σ = 136825774008. Its totient is φ = 114021478320.

The previous prime is 125423626157. The next prime is 125423626217. The reversal of 125423626163 is 361626324521.

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 125423626163 - 2²² = 125419431859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125423626163.

It is not an unprimeable number, because it can be changed into a prime (125423626963) 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, 5701073906 + ... + 5701073927.

It is an arithmetic number, because the mean of its divisors is an integer number (34206443502).

Almost surely, 2^125423626163 is an apocalyptic number.

125423626163 is a deficient number, since it is larger than the sum of its proper divisors (11402147845).

125423626163 is a wasteful number, since it uses less digits than its factorization.

125423626163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11402147844.

The product of its digits is 311040, while the sum is 41.

The spelling of 125423626163 in words is "one hundred twenty-five billion, four hundred twenty-three million, six hundred twenty-six thousand, one hundred sixty-three".