999010010099987 has 2 divisors, whose sum is σ = 999010010099988. Its totient is φ = 999010010099986.

The previous prime is 999010010099939. The next prime is 999010010100017. The reversal of 999010010099987 is 789990010010999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 999010010099987 - 2²⁴ = 999009993322771 is a prime.

It is a super-2 number, since 2×999010010099987² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999010010099987.

It is not a weakly prime, because it can be changed into another prime (999010018099987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499505005049993 + 499505005049994.

It is an arithmetic number, because the mean of its divisors is an integer number (499505005049994).

Almost surely, 2^{999010010099987} is an apocalyptic number.

999010010099987 is a deficient number, since it is larger than the sum of its proper divisors (1).

999010010099987 is an equidigital number, since it uses as much as digits as its factorization.

999010010099987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29760696, while the sum is 71.

The spelling of 999010010099987 in words is "nine hundred ninety-nine trillion, ten billion, ten million, ninety-nine thousand, nine hundred eighty-seven".