115729282397 has 4 divisors (see below), whose sum is σ = 121820297280. Its totient is φ = 109638267516.

The previous prime is 115729282393. The next prime is 115729282457. The reversal of 115729282397 is 793282927511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793282927511 = 101 ⋅7854286411.

It is a cyclic number.

It is not a de Polignac number, because 115729282397 - 2² = 115729282393 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 (115729282393) 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, 3045507413 + ... + 3045507450.

It is an arithmetic number, because the mean of its divisors is an integer number (30455074320).

Almost surely, 2^115729282397 is an apocalyptic number.

It is an amenable number.

115729282397 is a deficient number, since it is larger than the sum of its proper divisors (6091014883).

115729282397 is an equidigital number, since it uses as much as digits as its factorization.

115729282397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091014882.

The product of its digits is 3810240, while the sum is 56.

The spelling of 115729282397 in words is "one hundred fifteen billion, seven hundred twenty-nine million, two hundred eighty-two thousand, three hundred ninety-seven".