676722256465 has 8 divisors (see below), whose sum is σ = 812076194088. Its totient is φ = 541371480960.

The previous prime is 676722256453. The next prime is 676722256471. The reversal of 676722256465 is 564652227676.

It is a happy number.

676722256465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 16895840256 + 659826416209 = 129984^2 + 812297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 676722256465 - 2¹⁹ = 676721732177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291012 + ... + 1199221.

It is an arithmetic number, because the mean of its divisors is an integer number (101509524261).

Almost surely, 2^676722256465 is an apocalyptic number.

It is an amenable number.

676722256465 is a deficient number, since it is larger than the sum of its proper divisors (135353937623).

676722256465 is a wasteful number, since it uses less digits than its factorization.

676722256465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581059.

The product of its digits is 50803200, while the sum is 58.

The spelling of 676722256465 in words is "six hundred seventy-six billion, seven hundred twenty-two million, two hundred fifty-six thousand, four hundred sixty-five".