125538473980 has 12 divisors (see below), whose sum is σ = 263630795400. Its totient is φ = 50215389584.

The previous prime is 125538473969. The next prime is 125538473993. The reversal of 125538473980 is 89374835521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3138461830 + ... + 3138461869.

It is an arithmetic number, because the mean of its divisors is an integer number (21969232950).

Almost surely, 2^125538473980 is an apocalyptic number.

125538473980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125538473980 is an abundant number, since it is smaller than the sum of its proper divisors (138092321420).

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

125538473980 is a wasteful number, since it uses less digits than its factorization.

125538473980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6276923708 (or 6276923706 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 125538473980 in words is "one hundred twenty-five billion, five hundred thirty-eight million, four hundred seventy-three thousand, nine hundred eighty".