677015616677 has 4 divisors (see below), whose sum is σ = 677033798220. Its totient is φ = 676997435136.

The previous prime is 677015616661. The next prime is 677015616703. The reversal of 677015616677 is 776616510776.

It is a happy number.

677015616677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 671794976161 + 5220640516 = 819631^2 + 72254^2 .

It is a cyclic number.

It is not a de Polignac number, because 677015616677 - 2⁴ = 677015616661 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 (677015616637) 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, 9034802 + ... + 9109427.

It is an arithmetic number, because the mean of its divisors is an integer number (169258449555).

Almost surely, 2^677015616677 is an apocalyptic number.

It is an amenable number.

677015616677 is a deficient number, since it is larger than the sum of its proper divisors (18181543).

677015616677 is a wasteful number, since it uses less digits than its factorization.

677015616677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18181542.

The product of its (nonzero) digits is 15558480, while the sum is 59.

The spelling of 677015616677 in words is "six hundred seventy-seven billion, fifteen million, six hundred sixteen thousand, six hundred seventy-seven".