19932986512 has 40 divisors (see below), whose sum is σ = 39917195136. Its totient is φ = 9636886656.

The previous prime is 19932986509. The next prime is 19932986533. The reversal of 19932986512 is 21568923991.

It is a super-2 number, since 2×19932986512² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97263 + ... + 222094.

Almost surely, 2^19932986512 is an apocalyptic number.

It is an amenable number.

19932986512 is an abundant number, since it is smaller than the sum of its proper divisors (19984208624).

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

19932986512 is a wasteful number, since it uses less digits than its factorization.

19932986512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319495 (or 319489 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 55.

The spelling of 19932986512 in words is "nineteen billion, nine hundred thirty-two million, nine hundred eighty-six thousand, five hundred twelve".