115715400451507 has 4 divisors (see below), whose sum is σ = 115735855716216. Its totient is φ = 115694945186800.

The previous prime is 115715400451481. The next prime is 115715400451513. The reversal of 115715400451507 is 705154004517511.

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

It is a cyclic number.

It is not a de Polignac number, because 115715400451507 - 2¹⁹ = 115715399927219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115715400451517) 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, 10227623869 + ... + 10227635182.

It is an arithmetic number, because the mean of its divisors is an integer number (28933963929054).

Almost surely, 2^{115715400451507} is an apocalyptic number.

115715400451507 is a deficient number, since it is larger than the sum of its proper divisors (20455264709).

115715400451507 is an equidigital number, since it uses as much as digits as its factorization.

115715400451507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455264708.

The product of its (nonzero) digits is 490000, while the sum is 46.

The spelling of 115715400451507 in words is "one hundred fifteen trillion, seven hundred fifteen billion, four hundred million, four hundred fifty-one thousand, five hundred seven".