999860908763 has 2 divisors, whose sum is σ = 999860908764. Its totient is φ = 999860908762.

The previous prime is 999860908703. The next prime is 999860908771. The reversal of 999860908763 is 367809068999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999860908763 - 2⁶ = 999860908699 is a prime.

It is not a weakly prime, because it can be changed into another prime (999860908703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499930454381 + 499930454382.

It is an arithmetic number, because the mean of its divisors is an integer number (499930454382).

Almost surely, 2^999860908763 is an apocalyptic number.

999860908763 is a deficient number, since it is larger than the sum of its proper divisors (1).

999860908763 is an equidigital number, since it uses as much as digits as its factorization.

999860908763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317447424, while the sum is 74.

The spelling of 999860908763 in words is "nine hundred ninety-nine billion, eight hundred sixty million, nine hundred eight thousand, seven hundred sixty-three".