109990080917 has 2 divisors, whose sum is σ = 109990080918. Its totient is φ = 109990080916.

The previous prime is 109990080911. The next prime is 109990080947. The reversal of 109990080917 is 719080099901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86319027601 + 23671053316 = 293801^2 + 153854^2 .

It is a cyclic number.

It is not a de Polignac number, because 109990080917 - 2¹² = 109990076821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109990080911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54995040458 + 54995040459.

It is an arithmetic number, because the mean of its divisors is an integer number (54995040459).

Almost surely, 2^109990080917 is an apocalyptic number.

It is an amenable number.

109990080917 is a deficient number, since it is larger than the sum of its proper divisors (1).

109990080917 is an equidigital number, since it uses as much as digits as its factorization.

109990080917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 53.

The spelling of 109990080917 in words is "one hundred nine billion, nine hundred ninety million, eighty thousand, nine hundred seventeen".