125981789184 has 176 divisors, whose sum is σ = 376045363200. Its totient is φ = 41662107648.

The previous prime is 125981789161. The next prime is 125981789189. The reversal of 125981789184 is 481987189521.

125981789184 is a `hidden beast` number, since 12 + 598 + 17 + 8 + 9 + 18 + 4 = 666.

It is a super-2 number, since 2×125981789184² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125981789189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3493357 + ... + 3529235.

Almost surely, 2^125981789184 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125981789184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188022681600).

125981789184 is an abundant number, since it is smaller than the sum of its proper divisors (250063574016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125981789184 is a wasteful number, since it uses less digits than its factorization.

125981789184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36035 (or 36011 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 63.

The spelling of 125981789184 in words is "one hundred twenty-five billion, nine hundred eighty-one million, seven hundred eighty-nine thousand, one hundred eighty-four".