10247319961 has 2 divisors, whose sum is σ = 10247319962. Its totient is φ = 10247319960.

The previous prime is 10247319947. The next prime is 10247320001. The reversal of 10247319961 is 16991374201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8173064025 + 2074255936 = 90405^2 + 45544^2 .

It is a cyclic number.

It is not a de Polignac number, because 10247319961 - 2¹³ = 10247311769 is a prime.

It is not a weakly prime, because it can be changed into another prime (10247319931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5123659980 + 5123659981.

It is an arithmetic number, because the mean of its divisors is an integer number (5123659981).

Almost surely, 2^10247319961 is an apocalyptic number.

It is an amenable number.

10247319961 is a deficient number, since it is larger than the sum of its proper divisors (1).

10247319961 is an equidigital number, since it uses as much as digits as its factorization.

10247319961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 10247319961 in words is "ten billion, two hundred forty-seven million, three hundred nineteen thousand, nine hundred sixty-one".