115042621786 has 4 divisors (see below), whose sum is σ = 172563932682. Its totient is φ = 57521310892.

The previous prime is 115042621741. The next prime is 115042621853. The reversal of 115042621786 is 687126240511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 90108632761 + 24933989025 = 300181^2 + 157905^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28760655445 + ... + 28760655448.

Almost surely, 2^115042621786 is an apocalyptic number.

115042621786 is a deficient number, since it is larger than the sum of its proper divisors (57521310896).

115042621786 is an equidigital number, since it uses as much as digits as its factorization.

115042621786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57521310895.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 115042621786 in words is "one hundred fifteen billion, forty-two million, six hundred twenty-one thousand, seven hundred eighty-six".