99689853253 has 2 divisors, whose sum is σ = 99689853254. Its totient is φ = 99689853252.

The previous prime is 99689853127. The next prime is 99689853257. The reversal of 99689853253 is 35235898699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73922540769 + 25767312484 = 271887^2 + 160522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99689853253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99689853257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49844926626 + 49844926627.

It is an arithmetic number, because the mean of its divisors is an integer number (49844926627).

Almost surely, 2^99689853253 is an apocalyptic number.

It is an amenable number.

99689853253 is a deficient number, since it is larger than the sum of its proper divisors (1).

99689853253 is an equidigital number, since it uses as much as digits as its factorization.

99689853253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125971200, while the sum is 67.

The spelling of 99689853253 in words is "ninety-nine billion, six hundred eighty-nine million, eight hundred fifty-three thousand, two hundred fifty-three".