115510367861 has 16 divisors (see below), whose sum is σ = 137777856768. Its totient is φ = 94686028800.

The previous prime is 115510367849. The next prime is 115510367867. The reversal of 115510367861 is 168763015511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115510367861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115510367867) 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, 810071 + ... + 941931.

It is an arithmetic number, because the mean of its divisors is an integer number (8611116048).

Almost surely, 2^115510367861 is an apocalyptic number.

It is an amenable number.

115510367861 is a deficient number, since it is larger than the sum of its proper divisors (22267488907).

115510367861 is a wasteful number, since it uses less digits than its factorization.

115510367861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137332.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 115510367861 in words is "one hundred fifteen billion, five hundred ten million, three hundred sixty-seven thousand, eight hundred sixty-one".