119644443491 has 4 divisors (see below), whose sum is σ = 120171511752. Its totient is φ = 119117375232.

The previous prime is 119644443481. The next prime is 119644443511. The reversal of 119644443491 is 194344446911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-119644443491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (119644443461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263533790 + ... + 263534243.

It is an arithmetic number, because the mean of its divisors is an integer number (30042877938).

Almost surely, 2^119644443491 is an apocalyptic number.

119644443491 is a deficient number, since it is larger than the sum of its proper divisors (527068261).

119644443491 is an equidigital number, since it uses as much as digits as its factorization.

119644443491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527068260.

The product of its digits is 1492992, while the sum is 50.

The spelling of 119644443491 in words is "one hundred nineteen billion, six hundred forty-four million, four hundred forty-three thousand, four hundred ninety-one".