19693023324020 has 24 divisors (see below), whose sum is σ = 41402290389768. Its totient is φ = 7868268108800.

The previous prime is 19693023323959. The next prime is 19693023324109. The reversal of 19693023324020 is 2042332039691.

It can be written as a sum of positive squares in 4 ways, for example, as 1170087870436 + 18522935453584 = 1081706^2 + 4303828^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558808241 + ... + 558843480.

It is an arithmetic number, because the mean of its divisors is an integer number (1725095432907).

Almost surely, 2^{19693023324020} is an apocalyptic number.

19693023324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19693023324020 is an abundant number, since it is smaller than the sum of its proper divisors (21709267065748).

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

19693023324020 is a wasteful number, since it uses less digits than its factorization.

19693023324020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117652611 (or 1117652609 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 19693023324020 in words is "nineteen trillion, six hundred ninety-three billion, twenty-three million, three hundred twenty-four thousand, twenty".