115078399501 has 4 divisors (see below), whose sum is σ = 123930584092. Its totient is φ = 106226214912.

The previous prime is 115078399483. The next prime is 115078399529. The reversal of 115078399501 is 105993870511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32996722500 + 82081677001 = 181650^2 + 286499^2 .

It is a cyclic number.

It is not a de Polignac number, because 115078399501 - 2¹¹ = 115078397453 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 (115078399301) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4426092276 + ... + 4426092301.

It is an arithmetic number, because the mean of its divisors is an integer number (30982646023).

Almost surely, 2^115078399501 is an apocalyptic number.

It is an amenable number.

115078399501 is a deficient number, since it is larger than the sum of its proper divisors (8852184591).

115078399501 is an equidigital number, since it uses as much as digits as its factorization.

115078399501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852184590.

The product of its (nonzero) digits is 340200, while the sum is 49.

The spelling of 115078399501 in words is "one hundred fifteen billion, seventy-eight million, three hundred ninety-nine thousand, five hundred one".