109802438191 has 2 divisors, whose sum is σ = 109802438192. Its totient is φ = 109802438190.

The previous prime is 109802438149. The next prime is 109802438227. The reversal of 109802438191 is 191834208901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109802438191 - 2⁷ = 109802438063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109802438491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54901219095 + 54901219096.

It is an arithmetic number, because the mean of its divisors is an integer number (54901219096).

Almost surely, 2^109802438191 is an apocalyptic number.

109802438191 is a deficient number, since it is larger than the sum of its proper divisors (1).

109802438191 is an equidigital number, since it uses as much as digits as its factorization.

109802438191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 46.

The spelling of 109802438191 in words is "one hundred nine billion, eight hundred two million, four hundred thirty-eight thousand, one hundred ninety-one".