864112619 has 2 divisors, whose sum is σ = 864112620. Its totient is φ = 864112618.

The previous prime is 864112591. The next prime is 864112637. The reversal of 864112619 is 916211468.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864112619 is a prime.

It is a super-2 number, since 2×864112619² = 1493381236630078322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (864112919) 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 as a sum of consecutive naturals, namely, 432056309 + 432056310.

It is an arithmetic number, because the mean of its divisors is an integer number (432056310).

Almost surely, 2^864112619 is an apocalyptic number.

864112619 is a deficient number, since it is larger than the sum of its proper divisors (1).

864112619 is an equidigital number, since it uses as much as digits as its factorization.

864112619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The square root of 864112619 is about 29395.7925390693. The cubic root of 864112619 is about 952.4820116791.

The spelling of 864112619 in words is "eight hundred sixty-four million, one hundred twelve thousand, six hundred nineteen".