1918221935298 has 16 divisors (see below), whose sum is σ = 3859416590400. Its totient is φ = 635578525136.

The previous prime is 1918221935291. The next prime is 1918221935303. The reversal of 1918221935298 is 8925391228191.

It is not an unprimeable number, because it can be changed into a prime (1918221935291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957195573 + ... + 957197576.

It is an arithmetic number, because the mean of its divisors is an integer number (241213536900).

Almost surely, 2^{1918221935298} is an apocalyptic number.

1918221935298 is an abundant number, since it is smaller than the sum of its proper divisors (1941194655102).

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

1918221935298 is a wasteful number, since it uses less digits than its factorization.

1918221935298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914393321.

The product of its digits is 5598720, while the sum is 60.

The spelling of 1918221935298 in words is "one trillion, nine hundred eighteen billion, two hundred twenty-one million, nine hundred thirty-five thousand, two hundred ninety-eight".