125339393781 has 96 divisors (see below), whose sum is σ = 227909959680. Its totient is φ = 64763193600.

The previous prime is 125339393749. The next prime is 125339393813. The reversal of 125339393781 is 187393933521.

125339393781 is a `hidden beast` number, since 1 + 2 + 533 + 9 + 39 + 3 + 78 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (125339393749) and next prime (125339393813).

It is not a de Polignac number, because 125339393781 - 2⁵ = 125339393749 is a prime.

It is a super-2 number, since 2×125339393781² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125339393701) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2685676 + ... + 2731946.

It is an arithmetic number, because the mean of its divisors is an integer number (2374062080).

Almost surely, 2^125339393781 is an apocalyptic number.

It is an amenable number.

125339393781 is a deficient number, since it is larger than the sum of its proper divisors (102570565899).

125339393781 is a wasteful number, since it uses less digits than its factorization.

125339393781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46407 (or 46404 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 125339393781 in words is "one hundred twenty-five billion, three hundred thirty-nine million, three hundred ninety-three thousand, seven hundred eighty-one".