125791698615 has 64 divisors (see below), whose sum is σ = 224498801664. Its totient is φ = 60130224000.

The previous prime is 125791698589. The next prime is 125791698619. The reversal of 125791698615 is 516896197521.

It is a happy number.

It is not a de Polignac number, because 125791698615 - 2¹⁷ = 125791567543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125791698619) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1373145 + ... + 1461885.

It is an arithmetic number, because the mean of its divisors is an integer number (3507793776).

Almost surely, 2^125791698615 is an apocalyptic number.

125791698615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125791698615 is a deficient number, since it is larger than the sum of its proper divisors (98707103049).

125791698615 is an equidigital number, since it uses as much as digits as its factorization.

125791698615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88853 (or 88831 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 60.

It can be divided in two parts, 1257916 and 98615, that added together give a palindrome (1356531).

The spelling of 125791698615 in words is "one hundred twenty-five billion, seven hundred ninety-one million, six hundred ninety-eight thousand, six hundred fifteen".