115145517892 has 24 divisors (see below), whose sum is σ = 207613195776. Its totient is φ = 55849143168.

The previous prime is 115145517881. The next prime is 115145517899. The reversal of 115145517892 is 298715541511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (115145517899) 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 7 ways as a sum of consecutive naturals, for example, 2688828 + ... + 2731315.

It is an arithmetic number, because the mean of its divisors is an integer number (8650549824).

Almost surely, 2^115145517892 is an apocalyptic number.

It is an amenable number.

115145517892 is a deficient number, since it is larger than the sum of its proper divisors (92467677884).

115145517892 is a wasteful number, since it uses less digits than its factorization.

115145517892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420307 (or 5420305 counting only the distinct ones).

The product of its digits is 504000, while the sum is 49.

The spelling of 115145517892 in words is "one hundred fifteen billion, one hundred forty-five million, five hundred seventeen thousand, eight hundred ninety-two".