677774334077 has 6 divisors (see below), whose sum is σ = 689067540954. Its totient is φ = 666663275760.

The previous prime is 677774334073. The next prime is 677774334089. The reversal of 677774334077 is 770433477776.

It can be written as a sum of positive squares in 3 ways, for example, as 189132791236 + 488641542841 = 434894^2 + 699029^2 .

It is not a de Polignac number, because 677774334077 - 2² = 677774334073 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677774334073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 91070498 + ... + 91077939.

It is an arithmetic number, because the mean of its divisors is an integer number (114844590159).

Almost surely, 2^677774334077 is an apocalyptic number.

It is an amenable number.

677774334077 is a deficient number, since it is larger than the sum of its proper divisors (11293206877).

677774334077 is an equidigital number, since it uses as much as digits as its factorization.

677774334077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182148559 (or 182148498 counting only the distinct ones).

The product of its (nonzero) digits is 101648736, while the sum is 62.

The spelling of 677774334077 in words is "six hundred seventy-seven billion, seven hundred seventy-four million, three hundred thirty-four thousand, seventy-seven".