19091907234242 has 8 divisors (see below), whose sum is σ = 29123248323600. Its totient is φ = 9384157793044.

The previous prime is 19091907234209. The next prime is 19091907234247. The reversal of 19091907234242 is 24243270919091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (19091907234247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80897911892 + ... + 80897912127.

It is an arithmetic number, because the mean of its divisors is an integer number (3640406040450).

Almost surely, 2^{19091907234242} is an apocalyptic number.

19091907234242 is a deficient number, since it is larger than the sum of its proper divisors (10031341089358).

19091907234242 is a wasteful number, since it uses less digits than its factorization.

19091907234242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161795824080.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 19091907234242 in words is "nineteen trillion, ninety-one billion, nine hundred seven million, two hundred thirty-four thousand, two hundred forty-two".