115998773587 has 2 divisors, whose sum is σ = 115998773588. Its totient is φ = 115998773586.

The previous prime is 115998773581. The next prime is 115998773603. The reversal of 115998773587 is 785377899511.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115998773587 is a prime.

It is not a weakly prime, because it can be changed into another prime (115998773581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57999386793 + 57999386794.

It is an arithmetic number, because the mean of its divisors is an integer number (57999386794).

Almost surely, 2^115998773587 is an apocalyptic number.

115998773587 is a deficient number, since it is larger than the sum of its proper divisors (1).

115998773587 is an equidigital number, since it uses as much as digits as its factorization.

115998773587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 133358400, while the sum is 70.

The spelling of 115998773587 in words is "one hundred fifteen billion, nine hundred ninety-eight million, seven hundred seventy-three thousand, five hundred eighty-seven".