125985173607 has 32 divisors (see below), whose sum is σ = 190495948800. Its totient is φ = 82273804704.

The previous prime is 125985173593. The next prime is 125985173621. The reversal of 125985173607 is 706371589521.

125985173607 is a `hidden beast` number, since 1 + 2 + 5 + 98 + 517 + 36 + 0 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (125985173593) and next prime (125985173621).

It is not a de Polignac number, because 125985173607 - 2⁸ = 125985173351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125985183607) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 38353 + ... + 503429.

It is an arithmetic number, because the mean of its divisors is an integer number (5952998400).

Almost surely, 2^125985173607 is an apocalyptic number.

125985173607 is a deficient number, since it is larger than the sum of its proper divisors (64510775193).

125985173607 is a wasteful number, since it uses less digits than its factorization.

125985173607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465292 (or 465286 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 54.

The spelling of 125985173607 in words is "one hundred twenty-five billion, nine hundred eighty-five million, one hundred seventy-three thousand, six hundred seven".