124855234989 has 4 divisors (see below), whose sum is σ = 166473646656. Its totient is φ = 83236823324.

The previous prime is 124855234981. The next prime is 124855235023. The reversal of 124855234989 is 989432558421.

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 124855234989 - 2³ = 124855234981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124855234981) 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, 20809205829 + ... + 20809205834.

It is an arithmetic number, because the mean of its divisors is an integer number (41618411664).

Almost surely, 2^124855234989 is an apocalyptic number.

It is an amenable number.

124855234989 is a deficient number, since it is larger than the sum of its proper divisors (41618411667).

124855234989 is an equidigital number, since it uses as much as digits as its factorization.

124855234989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41618411666.

The product of its digits is 24883200, while the sum is 60.

The spelling of 124855234989 in words is "one hundred twenty-four billion, eight hundred fifty-five million, two hundred thirty-four thousand, nine hundred eighty-nine".