19982723620608 has 216 divisors, whose sum is σ = 69719135941728. Its totient is φ = 5373505437696.

The previous prime is 19982723620553. The next prime is 19982723620669. The reversal of 19982723620608 is 80602632728991.

19982723620608 is a `hidden beast` number, since 19 + 9 + 8 + 2 + 7 + 2 + 3 + 6 + 2 + 0 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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, 36167241 + ... + 36715592.

It is an arithmetic number, because the mean of its divisors is an integer number (322773777508).

Almost surely, 2^{19982723620608} is an apocalyptic number.

19982723620608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19982723620608 is an abundant number, since it is smaller than the sum of its proper divisors (49736412321120).

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

19982723620608 is a wasteful number, since it uses less digits than its factorization.

19982723620608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72882879 (or 72882862 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 19982723620608 in words is "nineteen trillion, nine hundred eighty-two billion, seven hundred twenty-three million, six hundred twenty thousand, six hundred eight".