19698932981000 has 1024 divisors, whose sum is σ = 61961247129600. Its totient is φ = 5690539008000.

The previous prime is 19698932980967. The next prime is 19698932981029. The reversal of 19698932981000 is 18923989691.

It is a super-2 number, since 2×19698932981000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4736456921 + ... + 4736461079.

It is an arithmetic number, because the mean of its divisors is an integer number (60509030400).

Almost surely, 2^{19698932981000} is an apocalyptic number.

19698932981000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19698932981000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30980623564800).

19698932981000 is an abundant number, since it is smaller than the sum of its proper divisors (42262314148600).

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

19698932981000 is a wasteful number, since it uses less digits than its factorization.

19698932981000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 65.

The spelling of 19698932981000 in words is "nineteen trillion, six hundred ninety-eight billion, nine hundred thirty-two million, nine hundred eighty-one thousand".