125457021486720 has 7168 divisors, whose sum is σ = 626747535360000. Its totient is φ = 23900263833600.

The previous prime is 125457021486683. The next prime is 125457021486733. The reversal of 125457021486720 is 27684120754521.

125457021486720 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 5 + 70 + 21 + 486 + 72 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 895 ways as a sum of consecutive naturals, for example, 4047000693105 + ... + 4047000693135.

Almost surely, 2^{125457021486720} is an apocalyptic number.

125457021486720 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 125457021486720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313373767680000).

125457021486720 is an abundant number, since it is smaller than the sum of its proper divisors (501290513873280).

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

125457021486720 is an frugal number, since it uses more digits than its factorization.

125457021486720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 125457021486720 in words is "one hundred twenty-five trillion, four hundred fifty-seven billion, twenty-one million, four hundred eighty-six thousand, seven hundred twenty".