125393428728 has 64 divisors (see below), whose sum is σ = 348510852000. Its totient is φ = 41774317056.

The previous prime is 125393428723. The next prime is 125393428747. The reversal of 125393428728 is 827824393521.

125393428728 is a `hidden beast` number, since 1 + 2 + 539 + 3 + 4 + 2 + 87 + 28 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125393428723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224176 + ... + 548672.

Almost surely, 2^125393428728 is an apocalyptic number.

125393428728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

125393428728 is an abundant number, since it is smaller than the sum of its proper divisors (223117423272).

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

125393428728 is a wasteful number, since it uses less digits than its factorization.

125393428728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326301 (or 326291 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 125393428728 in words is "one hundred twenty-five billion, three hundred ninety-three million, four hundred twenty-eight thousand, seven hundred twenty-eight".