677755777759 has 16 divisors (see below), whose sum is σ = 743831106048. Its totient is φ = 614997516672.

The previous prime is 677755777697. The next prime is 677755777763. The reversal of 677755777759 is 957777557776.

It is a cyclic number.

It is not a de Polignac number, because 677755777759 - 2²¹ = 677753680607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677755777859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6276729 + ... + 6383794.

It is an arithmetic number, because the mean of its divisors is an integer number (46489444128).

Almost surely, 2^677755777759 is an apocalyptic number.

677755777759 is a deficient number, since it is larger than the sum of its proper divisors (66075328289).

677755777759 is a wasteful number, since it uses less digits than its factorization.

677755777759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12660654.

The product of its digits is 5558915250, while the sum is 79.

The spelling of 677755777759 in words is "six hundred seventy-seven billion, seven hundred fifty-five million, seven hundred seventy-seven thousand, seven hundred fifty-nine".