677118537 has 12 divisors (see below), whose sum is σ = 1004494660. Its totient is φ = 439211808.

The previous prime is 677118511. The next prime is 677118553. The reversal of 677118537 is 735811776.

It can be written as a sum of positive squares in 2 ways, for example, as 535413321 + 141705216 = 23139^2 + 11904^2 .

It is not a de Polignac number, because 677118537 - 2¹⁰ = 677117513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677118492 and 677118501.

It is not an unprimeable number, because it can be changed into a prime (677118557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016362 + ... + 1017027.

Almost surely, 2^677118537 is an apocalyptic number.

It is an amenable number.

677118537 is a deficient number, since it is larger than the sum of its proper divisors (327376123).

677118537 is a wasteful number, since it uses less digits than its factorization.

677118537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2033432 (or 2033429 counting only the distinct ones).

The product of its digits is 246960, while the sum is 45.

The square root of 677118537 is about 26021.5014363122. The cubic root of 677118537 is about 878.1220874293.

The spelling of 677118537 in words is "six hundred seventy-seven million, one hundred eighteen thousand, five hundred thirty-seven".