8909097909499 has 2 divisors, whose sum is σ = 8909097909500. Its totient is φ = 8909097909498.

The previous prime is 8909097909427. The next prime is 8909097909581. The reversal of 8909097909499 is 9949097909098.

It is an a-pointer prime, because the next prime (8909097909581) can be obtained adding 8909097909499 to its sum of digits (82).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8909097909499 - 2¹³ = 8909097901307 is a prime.

It is a super-2 number, since 2×8909097909499² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8909097901499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4454548954749 + 4454548954750.

It is an arithmetic number, because the mean of its divisors is an integer number (4454548954750).

Almost surely, 2^{8909097909499} is an apocalyptic number.

8909097909499 is a deficient number, since it is larger than the sum of its proper divisors (1).

8909097909499 is an equidigital number, since it uses as much as digits as its factorization.

8909097909499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1071385056, while the sum is 82.

The spelling of 8909097909499 in words is "eight trillion, nine hundred nine billion, ninety-seven million, nine hundred nine thousand, four hundred ninety-nine".