964337446421 has 2 divisors, whose sum is σ = 964337446422. Its totient is φ = 964337446420.

The previous prime is 964337446411. The next prime is 964337446459. The reversal of 964337446421 is 124644733469.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938933868196 + 25403578225 = 968986^2 + 159385^2 .

It is an emirp because it is prime and its reverse (124644733469) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 964337446421 - 2¹⁴ = 964337430037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964337446411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482168723210 + 482168723211.

It is an arithmetic number, because the mean of its divisors is an integer number (482168723211).

Almost surely, 2^964337446421 is an apocalyptic number.

It is an amenable number.

964337446421 is a deficient number, since it is larger than the sum of its proper divisors (1).

964337446421 is an equidigital number, since it uses as much as digits as its factorization.

964337446421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10450944, while the sum is 53.

The spelling of 964337446421 in words is "nine hundred sixty-four billion, three hundred thirty-seven million, four hundred forty-six thousand, four hundred twenty-one".