1985883398592 has 28 divisors (see below), whose sum is σ = 5254316492616. Its totient is φ = 661961132800.

The previous prime is 1985883398537. The next prime is 1985883398621. The reversal of 1985883398592 is 2958933885891.

It is a congruent number.

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, 5171571159 + ... + 5171571542.

Almost surely, 2^{1985883398592} is an apocalyptic number.

1985883398592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1985883398592 is an abundant number, since it is smaller than the sum of its proper divisors (3268433094024).

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

1985883398592 is a wasteful number, since it uses less digits than its factorization.

1985883398592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343142716 (or 10343142706 counting only the distinct ones).

The product of its digits is 1343692800, while the sum is 78.

The spelling of 1985883398592 in words is "one trillion, nine hundred eighty-five billion, eight hundred eighty-three million, three hundred ninety-eight thousand, five hundred ninety-two".