1718987849794 has 8 divisors (see below), whose sum is σ = 2714191341840. Its totient is φ = 814257402516.

The previous prime is 1718987849773. The next prime is 1718987849819. The reversal of 1718987849794 is 4979487898171.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22618261144 + ... + 22618261219.

It is an arithmetic number, because the mean of its divisors is an integer number (339273917730).

Almost surely, 2^{1718987849794} is an apocalyptic number.

1718987849794 is a deficient number, since it is larger than the sum of its proper divisors (995203492046).

1718987849794 is a wasteful number, since it uses less digits than its factorization.

1718987849794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45236522384.

The product of its digits is 2048385024, while the sum is 82.

The spelling of 1718987849794 in words is "one trillion, seven hundred eighteen billion, nine hundred eighty-seven million, eight hundred forty-nine thousand, seven hundred ninety-four".