999811752047 has 2 divisors, whose sum is σ = 999811752048. Its totient is φ = 999811752046.

The previous prime is 999811752007. The next prime is 999811752061. The reversal of 999811752047 is 740257118999.

999811752047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (740257118999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999811752047 - 2¹⁰ = 999811751023 is a prime.

It is a super-3 number, since 3×999811752047³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999811752007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499905876023 + 499905876024.

It is an arithmetic number, because the mean of its divisors is an integer number (499905876024).

Almost surely, 2^999811752047 is an apocalyptic number.

999811752047 is a deficient number, since it is larger than the sum of its proper divisors (1).

999811752047 is an equidigital number, since it uses as much as digits as its factorization.

999811752047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 62.

The spelling of 999811752047 in words is "nine hundred ninety-nine billion, eight hundred eleven million, seven hundred fifty-two thousand, forty-seven".