677765124117 has 6 divisors (see below), whose sum is σ = 978994068182. Its totient is φ = 451843416072.

The previous prime is 677765124107. The next prime is 677765124139. The reversal of 677765124117 is 711421567776.

677765124117 is a `hidden beast` number, since 6 + 7 + 7 + 7 + 6 + 512 + 4 + 117 = 666.

677765124117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 590547677841 + 87217446276 = 768471^2 + 295326^2 .

It is a de Polignac number, because none of the positive numbers 2^k-677765124117 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 (677765124107) 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, 37653617998 + ... + 37653618015.

Almost surely, 2^677765124117 is an apocalyptic number.

It is an amenable number.

677765124117 is a deficient number, since it is larger than the sum of its proper divisors (301228944065).

677765124117 is a wasteful number, since it uses less digits than its factorization.

677765124117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75307236019 (or 75307236016 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 54.

The spelling of 677765124117 in words is "six hundred seventy-seven billion, seven hundred sixty-five million, one hundred twenty-four thousand, one hundred seventeen".