115710657861 has 16 divisors (see below), whose sum is σ = 154579104000. Its totient is φ = 76991405568.

The previous prime is 115710657859. The next prime is 115710657863. The reversal of 115710657861 is 168756017511.

It is an interprime number because it is at equal distance from previous prime (115710657859) and next prime (115710657863).

It is not a de Polignac number, because 115710657861 - 2¹ = 115710657859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115710657861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115710657863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7486980 + ... + 7502418.

It is an arithmetic number, because the mean of its divisors is an integer number (9661194000).

Almost surely, 2^115710657861 is an apocalyptic number.

It is an amenable number.

115710657861 is a deficient number, since it is larger than the sum of its proper divisors (38868446139).

115710657861 is a wasteful number, since it uses less digits than its factorization.

115710657861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20108.

The product of its (nonzero) digits is 352800, while the sum is 48.

The spelling of 115710657861 in words is "one hundred fifteen billion, seven hundred ten million, six hundred fifty-seven thousand, eight hundred sixty-one".