9320904964781 has 2 divisors, whose sum is σ = 9320904964782. Its totient is φ = 9320904964780.

The previous prime is 9320904964769. The next prime is 9320904964843. The reversal of 9320904964781 is 1874694090239.

It is an a-pointer prime, because the next prime (9320904964843) can be obtained adding 9320904964781 to its sum of digits (62).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7050883622500 + 2270021342281 = 2655350^2 + 1506659^2 .

It is a cyclic number.

It is not a de Polignac number, because 9320904964781 - 2⁶ = 9320904964717 is a prime.

It is a super-2 number, since 2×9320904964781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9320904964751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4660452482390 + 4660452482391.

It is an arithmetic number, because the mean of its divisors is an integer number (4660452482391).

Almost surely, 2^{9320904964781} is an apocalyptic number.

It is an amenable number.

9320904964781 is a deficient number, since it is larger than the sum of its proper divisors (1).

9320904964781 is an equidigital number, since it uses as much as digits as its factorization.

9320904964781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 9320904964781 in words is "nine trillion, three hundred twenty billion, nine hundred four million, nine hundred sixty-four thousand, seven hundred eighty-one".