921164624832677 has 2 divisors, whose sum is σ = 921164624832678. Its totient is φ = 921164624832676.

The previous prime is 921164624832659. The next prime is 921164624832743. The reversal of 921164624832677 is 776238426461129.

921164624832677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 881878192316356 + 39286432516321 = 29696434^2 + 6267889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-921164624832677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (921164624832077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460582312416338 + 460582312416339.

It is an arithmetic number, because the mean of its divisors is an integer number (460582312416339).

Almost surely, 2^{921164624832677} is an apocalyptic number.

It is an amenable number.

921164624832677 is a deficient number, since it is larger than the sum of its proper divisors (1).

921164624832677 is an equidigital number, since it uses as much as digits as its factorization.

921164624832677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 292626432, while the sum is 68.

The spelling of 921164624832677 in words is "nine hundred twenty-one trillion, one hundred sixty-four billion, six hundred twenty-four million, eight hundred thirty-two thousand, six hundred seventy-seven".