677308581829 has 4 divisors (see below), whose sum is σ = 738882089280. Its totient is φ = 615735074380.

The previous prime is 677308581821. The next prime is 677308581883. The reversal of 677308581829 is 928185803776.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677308581829 - 2³ = 677308581821 is a prime.

It is a super-2 number, since 2×677308581829² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677308581821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30786753709 + ... + 30786753730.

It is an arithmetic number, because the mean of its divisors is an integer number (184720522320).

Almost surely, 2^677308581829 is an apocalyptic number.

It is an amenable number.

677308581829 is a deficient number, since it is larger than the sum of its proper divisors (61573507451).

677308581829 is a wasteful number, since it uses less digits than its factorization.

677308581829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61573507450.

The product of its (nonzero) digits is 40642560, while the sum is 64.

The spelling of 677308581829 in words is "six hundred seventy-seven billion, three hundred eight million, five hundred eighty-one thousand, eight hundred twenty-nine".