191741120459 has 10 divisors (see below), whose sum is σ = 223684666860. Its totient is φ = 164349529764.

The previous prime is 191741120449. The next prime is 191741120479. The reversal of 191741120459 is 954021147191.

It is not a de Polignac number, because 191741120459 - 2¹² = 191741116363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191741120449) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39927029 + ... + 39931830.

It is an arithmetic number, because the mean of its divisors is an integer number (22368466686).

Almost surely, 2^191741120459 is an apocalyptic number.

191741120459 is a deficient number, since it is larger than the sum of its proper divisors (31943546401).

191741120459 is an frugal number, since it uses more digits than its factorization.

191741120459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79858887 (or 79858866 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 191741120459 in words is "one hundred ninety-one billion, seven hundred forty-one million, one hundred twenty thousand, four hundred fifty-nine".