923567962721 has 2 divisors, whose sum is σ = 923567962722. Its totient is φ = 923567962720.

The previous prime is 923567962687. The next prime is 923567962727. The reversal of 923567962721 is 127269765329.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 570381415696 + 353186547025 = 755236^2 + 594295^2 .

It is a cyclic number.

It is not a de Polignac number, because 923567962721 - 2¹⁴ = 923567946337 is a prime.

It is not a weakly prime, because it can be changed into another prime (923567962727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461783981360 + 461783981361.

It is an arithmetic number, because the mean of its divisors is an integer number (461783981361).

Almost surely, 2^923567962721 is an apocalyptic number.

It is an amenable number.

923567962721 is a deficient number, since it is larger than the sum of its proper divisors (1).

923567962721 is an equidigital number, since it uses as much as digits as its factorization.

923567962721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17146080, while the sum is 59.

The spelling of 923567962721 in words is "nine hundred twenty-three billion, five hundred sixty-seven million, nine hundred sixty-two thousand, seven hundred twenty-one".