977118563 has 2 divisors, whose sum is σ = 977118564. Its totient is φ = 977118562.

The previous prime is 977118551. The next prime is 977118589. The reversal of 977118563 is 365811779.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977118563 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (977118763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488559281 + 488559282.

It is an arithmetic number, because the mean of its divisors is an integer number (488559282).

Almost surely, 2^977118563 is an apocalyptic number.

977118563 is a deficient number, since it is larger than the sum of its proper divisors (1).

977118563 is an equidigital number, since it uses as much as digits as its factorization.

977118563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 47.

The square root of 977118563 is about 31258.8957418524. The cubic root of 977118563 is about 992.3139300148.

The spelling of 977118563 in words is "nine hundred seventy-seven million, one hundred eighteen thousand, five hundred sixty-three".