915897875987 has 2 divisors, whose sum is σ = 915897875988. Its totient is φ = 915897875986.

The previous prime is 915897875899. The next prime is 915897875989. The reversal of 915897875987 is 789578798519.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 915897875987 - 2¹⁸ = 915897613843 is a prime.

Together with 915897875989, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (915897875989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 457948937993 + 457948937994.

It is an arithmetic number, because the mean of its divisors is an integer number (457948937994).

Almost surely, 2^915897875987 is an apocalyptic number.

915897875987 is a deficient number, since it is larger than the sum of its proper divisors (1).

915897875987 is an equidigital number, since it uses as much as digits as its factorization.

915897875987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200601600, while the sum is 83.

The spelling of 915897875987 in words is "nine hundred fifteen billion, eight hundred ninety-seven million, eight hundred seventy-five thousand, nine hundred eighty-seven".