1921840301194 has 64 divisors (see below), whose sum is σ = 3453676745472. Its totient is φ = 792035712000.

The previous prime is 1921840301191. The next prime is 1921840301207. The reversal of 1921840301194 is 4911030481291.

It is a self number, because there is not a number n which added to its sum of digits gives 1921840301194.

It is not an unprimeable number, because it can be changed into a prime (1921840301191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710107 + ... + 2085169.

It is an arithmetic number, because the mean of its divisors is an integer number (53963699148).

Almost surely, 2^{1921840301194} is an apocalyptic number.

1921840301194 is a deficient number, since it is larger than the sum of its proper divisors (1531836444278).

1921840301194 is a wasteful number, since it uses less digits than its factorization.

1921840301194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375231.

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 1921840301194 in words is "one trillion, nine hundred twenty-one billion, eight hundred forty million, three hundred one thousand, one hundred ninety-four".