115447316645 has 4 divisors (see below), whose sum is σ = 138536779980. Its totient is φ = 92357853312.

The previous prime is 115447316587. The next prime is 115447316657. The reversal of 115447316645 is 546613744511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 546613744511 = 487 ⋅1122410153.

It can be written as a sum of positive squares in 2 ways, for example, as 67944678244 + 47502638401 = 260662^2 + 217951^2 .

It is a cyclic number.

It is not a de Polignac number, because 115447316645 - 2¹⁴ = 115447300261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115447316645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11544731660 + ... + 11544731669.

It is an arithmetic number, because the mean of its divisors is an integer number (34634194995).

Almost surely, 2^115447316645 is an apocalyptic number.

It is an amenable number.

115447316645 is a deficient number, since it is larger than the sum of its proper divisors (23089463335).

115447316645 is an equidigital number, since it uses as much as digits as its factorization.

115447316645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23089463334.

The product of its digits is 1209600, while the sum is 47.

The spelling of 115447316645 in words is "one hundred fifteen billion, four hundred forty-seven million, three hundred sixteen thousand, six hundred forty-five".