77895316223999 has 4 divisors (see below), whose sum is σ = 77949674436336. Its totient is φ = 77840958011664.

The previous prime is 77895316223909. The next prime is 77895316224067. The reversal of 77895316223999 is 99932261359877.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77895316223999 - 2⁸ = 77895316223743 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 (77895316223909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27179104019 + ... + 27179106884.

It is an arithmetic number, because the mean of its divisors is an integer number (19487418609084).

Almost surely, 2^{77895316223999} is an apocalyptic number.

77895316223999 is a deficient number, since it is larger than the sum of its proper divisors (54358212337).

77895316223999 is a wasteful number, since it uses less digits than its factorization.

77895316223999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54358212336.

The product of its digits is 2777664960, while the sum is 80.

The spelling of 77895316223999 in words is "seventy-seven trillion, eight hundred ninety-five billion, three hundred sixteen million, two hundred twenty-three thousand, nine hundred ninety-nine".