125498718789 has 8 divisors (see below), whose sum is σ = 168956204352. Its totient is φ = 82853522880.

The previous prime is 125498718781. The next prime is 125498718799. The reversal of 125498718789 is 987817894521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125498718789 - 2³ = 125498718781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125498718781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203072052 + ... + 203072669.

It is an arithmetic number, because the mean of its divisors is an integer number (21119525544).

Almost surely, 2^125498718789 is an apocalyptic number.

It is an amenable number.

125498718789 is a deficient number, since it is larger than the sum of its proper divisors (43457485563).

125498718789 is a wasteful number, since it uses less digits than its factorization.

125498718789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406144827.

The product of its digits is 81285120, while the sum is 69.

The spelling of 125498718789 in words is "one hundred twenty-five billion, four hundred ninety-eight million, seven hundred eighteen thousand, seven hundred eighty-nine".