115027297989 has 4 divisors (see below), whose sum is σ = 153369730656. Its totient is φ = 76684865324.

The previous prime is 115027297951. The next prime is 115027298027. The reversal of 115027297989 is 989792720511.

It is a happy number.

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.

It is an interprime number because it is at equal distance from previous prime (115027297951) and next prime (115027298027).

It is a cyclic number.

It is not a de Polignac number, because 115027297989 - 2⁹ = 115027297477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115027297289) 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, 19171216329 + ... + 19171216334.

It is an arithmetic number, because the mean of its divisors is an integer number (38342432664).

Almost surely, 2^115027297989 is an apocalyptic number.

It is an amenable number.

115027297989 is a deficient number, since it is larger than the sum of its proper divisors (38342432667).

115027297989 is an equidigital number, since it uses as much as digits as its factorization.

115027297989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38342432666.

The product of its (nonzero) digits is 5715360, while the sum is 60.

The spelling of 115027297989 in words is "one hundred fifteen billion, twenty-seven million, two hundred ninety-seven thousand, nine hundred eighty-nine".