124961795500 has 96 divisors (see below), whose sum is σ = 276388257600. Its totient is φ = 49351680000.

The previous prime is 124961795477. The next prime is 124961795513. The reversal of 124961795500 is 5597169421.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 19136236 + ... + 19142764.

It is an arithmetic number, because the mean of its divisors is an integer number (2879044350).

Almost surely, 2^124961795500 is an apocalyptic number.

124961795500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124961795500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138194128800).

124961795500 is an abundant number, since it is smaller than the sum of its proper divisors (151426462100).

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

124961795500 is a wasteful number, since it uses less digits than its factorization.

124961795500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028 (or 7016 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 124961795500 in words is "one hundred twenty-four billion, nine hundred sixty-one million, seven hundred ninety-five thousand, five hundred".