1985914485914 has 8 divisors (see below), whose sum is σ = 2989863876288. Its totient is φ = 989293193820.

The previous prime is 1985914485887. The next prime is 1985914485917. The reversal of 1985914485914 is 4195844195891.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1985914485917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1832023892 + ... + 1832024975.

It is an arithmetic number, because the mean of its divisors is an integer number (373732984536).

Almost surely, 2^{1985914485914} is an apocalyptic number.

1985914485914 is a deficient number, since it is larger than the sum of its proper divisors (1003949390374).

1985914485914 is a wasteful number, since it uses less digits than its factorization.

1985914485914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664049140.

The product of its digits is 74649600, while the sum is 68.

The spelling of 1985914485914 in words is "one trillion, nine hundred eighty-five billion, nine hundred fourteen million, four hundred eighty-five thousand, nine hundred fourteen".