115818296493 has 4 divisors (see below), whose sum is σ = 154424395328. Its totient is φ = 77212197660.

The previous prime is 115818296491. The next prime is 115818296509. The reversal of 115818296493 is 394692818511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 115818296493 - 2¹ = 115818296491 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 (115818296491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19303049413 + ... + 19303049418.

It is an arithmetic number, because the mean of its divisors is an integer number (38606098832).

Almost surely, 2^115818296493 is an apocalyptic number.

It is an amenable number.

115818296493 is a deficient number, since it is larger than the sum of its proper divisors (38606098835).

115818296493 is an equidigital number, since it uses as much as digits as its factorization.

115818296493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38606098834.

The product of its digits is 3732480, while the sum is 57.

The spelling of 115818296493 in words is "one hundred fifteen billion, eight hundred eighteen million, two hundred ninety-six thousand, four hundred ninety-three".