19160721436842 has 24 divisors (see below), whose sum is σ = 41701061910144. Its totient is φ = 6358266305064.

The previous prime is 19160721436841. The next prime is 19160721436861. The reversal of 19160721436842 is 24863412706191.

19160721436842 is a `hidden beast` number, since 1 + 9 + 1 + 60 + 7 + 214 + 368 + 4 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (19160721436841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2386732588 + ... + 2386740615.

It is an arithmetic number, because the mean of its divisors is an integer number (1737544246256).

Almost surely, 2^{19160721436842} is an apocalyptic number.

19160721436842 is an abundant number, since it is smaller than the sum of its proper divisors (22540340473302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19160721436842 is a wasteful number, since it uses less digits than its factorization.

19160721436842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773473434 (or 4773473431 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 19160721436842 in words is "nineteen trillion, one hundred sixty billion, seven hundred twenty-one million, four hundred thirty-six thousand, eight hundred forty-two".