19982353086 has 96 divisors (see below), whose sum is σ = 46293287040. Its totient is φ = 6211173312.

The previous prime is 19982353043. The next prime is 19982353087. The reversal of 19982353086 is 68035328991.

19982353086 is a `hidden beast` number, since 1 + 9 + 9 + 8 + 23 + 530 + 86 = 666.

It is a super-4 number, since 4×19982353086⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19982353087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8713356 + ... + 8715648.

It is an arithmetic number, because the mean of its divisors is an integer number (482221740).

Almost surely, 2^19982353086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19982353086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23146643520).

19982353086 is an abundant number, since it is smaller than the sum of its proper divisors (26310933954).

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

19982353086 is a wasteful number, since it uses less digits than its factorization.

19982353086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710 (or 2707 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 19982353086 in words is "nineteen billion, nine hundred eighty-two million, three hundred fifty-three thousand, eighty-six".