677502616961 has 4 divisors (see below), whose sum is σ = 681245725524. Its totient is φ = 673759508400.

The previous prime is 677502616957. The next prime is 677502616981. The reversal of 677502616961 is 169616205776.

677502616961 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 78164976400 + 599337640561 = 279580^2 + 774169^2 .

It is a cyclic number.

It is not a de Polignac number, because 677502616961 - 2² = 677502616957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677502616897 and 677502616906.

It is not an unprimeable number, because it can be changed into a prime (677502616981) 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, 1871554010 + ... + 1871554371.

It is an arithmetic number, because the mean of its divisors is an integer number (170311431381).

Almost surely, 2^677502616961 is an apocalyptic number.

It is an amenable number.

677502616961 is a deficient number, since it is larger than the sum of its proper divisors (3743108563).

677502616961 is a wasteful number, since it uses less digits than its factorization.

677502616961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743108562.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 677502616961 in words is "six hundred seventy-seven billion, five hundred two million, six hundred sixteen thousand, nine hundred sixty-one".