109144456279 has 2 divisors, whose sum is σ = 109144456280. Its totient is φ = 109144456278.

The previous prime is 109144456277. The next prime is 109144456367. The reversal of 109144456279 is 972654441901.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109144456279 - 2¹ = 109144456277 is a prime.

Together with 109144456277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109144456277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54572228139 + 54572228140.

It is an arithmetic number, because the mean of its divisors is an integer number (54572228140).

Almost surely, 2^109144456279 is an apocalyptic number.

109144456279 is a deficient number, since it is larger than the sum of its proper divisors (1).

109144456279 is an equidigital number, since it uses as much as digits as its factorization.

109144456279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 109144456279 in words is "one hundred nine billion, one hundred forty-four million, four hundred fifty-six thousand, two hundred seventy-nine".