1985910930512 has 40 divisors (see below), whose sum is σ = 3850028582400. Its totient is φ = 992355408000.

The previous prime is 1985910930463. The next prime is 1985910930589. The reversal of 1985910930512 is 2150390195891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345793913 + ... + 345799655.

It is an arithmetic number, because the mean of its divisors is an integer number (96250714560).

Almost surely, 2^{1985910930512} is an apocalyptic number.

It is an amenable number.

1985910930512 is a deficient number, since it is larger than the sum of its proper divisors (1864117651888).

1985910930512 is a wasteful number, since it uses less digits than its factorization.

1985910930512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15051 (or 15045 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 53.

The spelling of 1985910930512 in words is "one trillion, nine hundred eighty-five billion, nine hundred ten million, nine hundred thirty thousand, five hundred twelve".