19793982180 has 72 divisors (see below), whose sum is σ = 64471837248. Its totient is φ = 4524338112.

The previous prime is 19793982163. The next prime is 19793982191. The reversal of 19793982180 is 8128939791.

It is a super-3 number, since 3×19793982180³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19793982180.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3363384 + ... + 3369263.

It is an arithmetic number, because the mean of its divisors is an integer number (895442184).

Almost surely, 2^19793982180 is an apocalyptic number.

19793982180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19793982180 is an abundant number, since it is smaller than the sum of its proper divisors (44677855068).

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

19793982180 is a wasteful number, since it uses less digits than its factorization.

19793982180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732673 (or 6732664 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 57.

The spelling of 19793982180 in words is "nineteen billion, seven hundred ninety-three million, nine hundred eighty-two thousand, one hundred eighty".