115782788563 has 16 divisors (see below), whose sum is σ = 131265953280. Its totient is φ = 101240384544.

The previous prime is 115782788557. The next prime is 115782788599. The reversal of 115782788563 is 365887287511.

It is a happy number.

It is not a de Polignac number, because 115782788563 - 2⁵ = 115782788531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115782788263) 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, 2980020 + ... + 3018622.

It is an arithmetic number, because the mean of its divisors is an integer number (8204122080).

Almost surely, 2^115782788563 is an apocalyptic number.

115782788563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

115782788563 is a deficient number, since it is larger than the sum of its proper divisors (15483164717).

115782788563 is a wasteful number, since it uses less digits than its factorization.

115782788563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50778.

The product of its digits is 22579200, while the sum is 61.

The spelling of 115782788563 in words is "one hundred fifteen billion, seven hundred eighty-two million, seven hundred eighty-eight thousand, five hundred sixty-three".