677822859842 has 6 divisors (see below), whose sum is σ = 1016736036249. Its totient is φ = 338910847760.

The previous prime is 677822859817. The next prime is 677822859851. The reversal of 677822859842 is 248958228776.

It can be written as a sum of positive squares in 2 ways, for example, as 350216587681 + 327606272161 = 591791^2 + 572369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=582161.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 873242 + ... + 1455402.

Almost surely, 2^677822859842 is an apocalyptic number.

677822859842 is a deficient number, since it is larger than the sum of its proper divisors (338913176407).

677822859842 is an frugal number, since it uses more digits than its factorization.

677822859842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164324 (or 582163 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 68.

The spelling of 677822859842 in words is "six hundred seventy-seven billion, eight hundred twenty-two million, eight hundred fifty-nine thousand, eight hundred forty-two".