77375312347 has 4 divisors (see below), whose sum is σ = 77465389240. Its totient is φ = 77285235456.

The previous prime is 77375312317. The next prime is 77375312411. The reversal of 77375312347 is 74321357377.

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 77375312347 - 2⁷ = 77375312219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77375312347.

It is not an unprimeable number, because it can be changed into a prime (77375312317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45037158 + ... + 45038875.

It is an arithmetic number, because the mean of its divisors is an integer number (19366347310).

Almost surely, 2^77375312347 is an apocalyptic number.

77375312347 is a deficient number, since it is larger than the sum of its proper divisors (90076893).

77375312347 is an equidigital number, since it uses as much as digits as its factorization.

77375312347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90076892.

The product of its digits is 2593080, while the sum is 49.

The spelling of 77375312347 in words is "seventy-seven billion, three hundred seventy-five million, three hundred twelve thousand, three hundred forty-seven".