999752686663 has 2 divisors, whose sum is σ = 999752686664. Its totient is φ = 999752686662.

The previous prime is 999752686661. The next prime is 999752686693. The reversal of 999752686663 is 366686257999.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999752686663 - 2¹ = 999752686661 is a prime.

Together with 999752686661, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 999752686663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999752686661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499876343331 + 499876343332.

It is an arithmetic number, because the mean of its divisors is an integer number (499876343332).

Almost surely, 2^999752686663 is an apocalyptic number.

999752686663 is a deficient number, since it is larger than the sum of its proper divisors (1).

999752686663 is an equidigital number, since it uses as much as digits as its factorization.

999752686663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587237120, while the sum is 76.

The spelling of 999752686663 in words is "nine hundred ninety-nine billion, seven hundred fifty-two million, six hundred eighty-six thousand, six hundred sixty-three".