109997492009 has 2 divisors, whose sum is σ = 109997492010. Its totient is φ = 109997492008.

The previous prime is 109997491931. The next prime is 109997492041. The reversal of 109997492009 is 900294799901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74108083984 + 35889408025 = 272228^2 + 189445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109997492009 is a prime.

It is not a weakly prime, because it can be changed into another prime (109997492309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54998746004 + 54998746005.

It is an arithmetic number, because the mean of its divisors is an integer number (54998746005).

Almost surely, 2^109997492009 is an apocalyptic number.

It is an amenable number.

109997492009 is a deficient number, since it is larger than the sum of its proper divisors (1).

109997492009 is an equidigital number, since it uses as much as digits as its factorization.

109997492009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 59.

The spelling of 109997492009 in words is "one hundred nine billion, nine hundred ninety-seven million, four hundred ninety-two thousand, nine".