99999009853 has 2 divisors, whose sum is σ = 99999009854. Its totient is φ = 99999009852.

The previous prime is 99999009827. The next prime is 99999009893. The reversal of 99999009853 is 35890099999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52806661209 + 47192348644 = 229797^2 + 217238^2 .

It is a cyclic number.

It is not a de Polignac number, because 99999009853 - 2⁵ = 99999009821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99999009893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999504926 + 49999504927.

It is an arithmetic number, because the mean of its divisors is an integer number (49999504927).

Almost surely, 2^99999009853 is an apocalyptic number.

It is an amenable number.

99999009853 is a deficient number, since it is larger than the sum of its proper divisors (1).

99999009853 is an equidigital number, since it uses as much as digits as its factorization.

99999009853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63772920, while the sum is 70.

The spelling of 99999009853 in words is "ninety-nine billion, nine hundred ninety-nine million, nine thousand, eight hundred fifty-three".