1985523735194 has 8 divisors (see below), whose sum is σ = 2978299064928. Its totient is φ = 992757380220.

The previous prime is 1985523735119. The next prime is 1985523735227. The reversal of 1985523735194 is 4915373255891.

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, 1660262 + ... + 2593745.

It is an arithmetic number, because the mean of its divisors is an integer number (372287383116).

Almost surely, 2^{1985523735194} is an apocalyptic number.

1985523735194 is a deficient number, since it is larger than the sum of its proper divisors (992775329734).

1985523735194 is a wasteful number, since it uses less digits than its factorization.

1985523735194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487380.

The product of its digits is 40824000, while the sum is 62.

The spelling of 1985523735194 in words is "one trillion, nine hundred eighty-five billion, five hundred twenty-three million, seven hundred thirty-five thousand, one hundred ninety-four".