677456234864 has 20 divisors (see below), whose sum is σ = 1315704096840. Its totient is φ = 337919693760.

The previous prime is 677456234863. The next prime is 677456234891. The reversal of 677456234864 is 468432654776.

It is a happy number.

It is a super-2 number, since 2×677456234864² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 677456234797 and 677456234806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677456234863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50519567 + ... + 50532974.

It is an arithmetic number, because the mean of its divisors is an integer number (65785204842).

Almost surely, 2^677456234864 is an apocalyptic number.

It is an amenable number.

677456234864 is a deficient number, since it is larger than the sum of its proper divisors (638247861976).

677456234864 is a wasteful number, since it uses less digits than its factorization.

677456234864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101052968 (or 101052962 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 62.

The spelling of 677456234864 in words is "six hundred seventy-seven billion, four hundred fifty-six million, two hundred thirty-four thousand, eight hundred sixty-four".