677767677407 has 4 divisors (see below), whose sum is σ = 692188266336. Its totient is φ = 663347088480.

The previous prime is 677767677341. The next prime is 677767677463. The reversal of 677767677407 is 704776767776.

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

It is not a de Polignac number, because 677767677407 - 2²⁴ = 677750900191 is a prime.

It is a super-3 number, since 3×677767677407³ (a number of 36 digits) contains 333 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 (677767677107) 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, 7210294394 + ... + 7210294487.

It is an arithmetic number, because the mean of its divisors is an integer number (173047066584).

Almost surely, 2^677767677407 is an apocalyptic number.

677767677407 is a deficient number, since it is larger than the sum of its proper divisors (14420588929).

677767677407 is a wasteful number, since it uses less digits than its factorization.

677767677407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14420588928.

The product of its (nonzero) digits is 711541152, while the sum is 71.

The spelling of 677767677407 in words is "six hundred seventy-seven billion, seven hundred sixty-seven million, six hundred seventy-seven thousand, four hundred seven".