909918935249 has 2 divisors, whose sum is σ = 909918935250. Its totient is φ = 909918935248.

The previous prime is 909918935243. The next prime is 909918935329. The reversal of 909918935249 is 942539819909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 905270422849 + 4648512400 = 951457^2 + 68180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-909918935249 is a prime.

It is not a weakly prime, because it can be changed into another prime (909918935243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454959467624 + 454959467625.

It is an arithmetic number, because the mean of its divisors is an integer number (454959467625).

Almost surely, 2^909918935249 is an apocalyptic number.

It is an amenable number.

909918935249 is a deficient number, since it is larger than the sum of its proper divisors (1).

909918935249 is an equidigital number, since it uses as much as digits as its factorization.

909918935249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56687040, while the sum is 68.

The spelling of 909918935249 in words is "nine hundred nine billion, nine hundred eighteen million, nine hundred thirty-five thousand, two hundred forty-nine".