191940444742 has 16 divisors (see below), whose sum is σ = 294947057664. Its totient is φ = 93624984000.

The previous prime is 191940444713. The next prime is 191940444763. The reversal of 191940444742 is 247444049191.

191940444742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×191940444742² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215867 + ... + 2300857.

It is an arithmetic number, because the mean of its divisors is an integer number (18434191104).

Almost surely, 2^191940444742 is an apocalyptic number.

191940444742 is a deficient number, since it is larger than the sum of its proper divisors (103006612922).

191940444742 is a wasteful number, since it uses less digits than its factorization.

191940444742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112575.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 191940444742 in words is "one hundred ninety-one billion, nine hundred forty million, four hundred forty-four thousand, seven hundred forty-two".