124928128880 has 40 divisors (see below), whose sum is σ = 294134596800. Its totient is φ = 49338701568.

The previous prime is 124928128873. The next prime is 124928128883. The reversal of 124928128880 is 88821829421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124928128883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9877235 + ... + 9889874.

It is an arithmetic number, because the mean of its divisors is an integer number (7353364920).

Almost surely, 2^124928128880 is an apocalyptic number.

124928128880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124928128880 is an abundant number, since it is smaller than the sum of its proper divisors (169206467920).

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

124928128880 is a wasteful number, since it uses less digits than its factorization.

124928128880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19767201 (or 19767195 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 53.

The spelling of 124928128880 in words is "one hundred twenty-four billion, nine hundred twenty-eight million, one hundred twenty-eight thousand, eight hundred eighty".