99137963209 has 2 divisors, whose sum is σ = 99137963210. Its totient is φ = 99137963208.

The previous prime is 99137963201. The next prime is 99137963219. The reversal of 99137963209 is 90236973199.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97841963209 + 1296000000 = 312797^2 + 36000^2 .

It is a cyclic number.

It is not a de Polignac number, because 99137963209 - 2³ = 99137963201 is a prime.

It is a super-3 number, since 3×99137963209³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (99137963201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49568981604 + 49568981605.

It is an arithmetic number, because the mean of its divisors is an integer number (49568981605).

Almost surely, 2^99137963209 is an apocalyptic number.

It is an amenable number.

99137963209 is a deficient number, since it is larger than the sum of its proper divisors (1).

99137963209 is an equidigital number, since it uses as much as digits as its factorization.

99137963209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4960116, while the sum is 58.

The spelling of 99137963209 in words is "ninety-nine billion, one hundred thirty-seven million, nine hundred sixty-three thousand, two hundred nine".