125798399880 has 32 divisors (see below), whose sum is σ = 377395200000. Its totient is φ = 33546239936.

The previous prime is 125798399833. The next prime is 125798399891. The reversal of 125798399880 is 88993897521.

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 7 ways as a sum of consecutive naturals, for example, 524159880 + ... + 524160119.

It is an arithmetic number, because the mean of its divisors is an integer number (11793600000).

Almost surely, 2^125798399880 is an apocalyptic number.

125798399880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125798399880 is an abundant number, since it is smaller than the sum of its proper divisors (251596800120).

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

125798399880 is a wasteful number, since it uses less digits than its factorization.

125798399880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048320013 (or 1048320009 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 69.

The spelling of 125798399880 in words is "one hundred twenty-five billion, seven hundred ninety-eight million, three hundred ninety-nine thousand, eight hundred eighty".