115287782511 has 12 divisors (see below), whose sum is σ = 168961709336. Its totient is φ = 69871383120.

The previous prime is 115287782507. The next prime is 115287782549.

115287782511 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 115287782511 - 2² = 115287782507 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 (115287782581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 158798236 + ... + 158798961.

Almost surely, 2^115287782511 is an apocalyptic number.

115287782511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115287782511 is a deficient number, since it is larger than the sum of its proper divisors (53673926825).

115287782511 is a wasteful number, since it uses less digits than its factorization.

115287782511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317597222 (or 317597211 counting only the distinct ones).

The product of its digits is 313600, while the sum is 48.

It can be divided in two parts, 115287 and 782511, that added together give a palindrome (897798).

The spelling of 115287782511 in words is "one hundred fifteen billion, two hundred eighty-seven million, seven hundred eighty-two thousand, five hundred eleven".