999985769707 has 2 divisors, whose sum is σ = 999985769708. Its totient is φ = 999985769706.

The previous prime is 999985769641. The next prime is 999985769719. The reversal of 999985769707 is 707967589999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999985769707 is a prime.

It is a pancake number, because a pancake can be divided into 999985769707 parts by 1414203 straight cuts.

It is not a weakly prime, because it can be changed into another prime (999985769407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499992884853 + 499992884854.

It is an arithmetic number, because the mean of its divisors is an integer number (499992884854).

Almost surely, 2^999985769707 is an apocalyptic number.

999985769707 is a deficient number, since it is larger than the sum of its proper divisors (1).

999985769707 is an equidigital number, since it uses as much as digits as its factorization.

999985769707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860913680, while the sum is 85.

The spelling of 999985769707 in words is "nine hundred ninety-nine billion, nine hundred eighty-five million, seven hundred sixty-nine thousand, seven hundred seven".