964777076234921 has 2 divisors, whose sum is σ = 964777076234922. Its totient is φ = 964777076234920.

The previous prime is 964777076234899. The next prime is 964777076234929. The reversal of 964777076234921 is 129432670777469.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 907386754825321 + 57390321409600 = 30122861^2 + 7575640^2 .

It is a cyclic number.

It is not a de Polignac number, because 964777076234921 - 2⁶ = 964777076234857 is a prime.

It is not a weakly prime, because it can be changed into another prime (964777076234929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482388538117460 + 482388538117461.

It is an arithmetic number, because the mean of its divisors is an integer number (482388538117461).

Almost surely, 2^{964777076234921} is an apocalyptic number.

It is an amenable number.

964777076234921 is a deficient number, since it is larger than the sum of its proper divisors (1).

964777076234921 is an equidigital number, since it uses as much as digits as its factorization.

964777076234921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344252672, while the sum is 74.

The spelling of 964777076234921 in words is "nine hundred sixty-four trillion, seven hundred seventy-seven billion, seventy-six million, two hundred thirty-four thousand, nine hundred twenty-one".