21323795840196 has 24 divisors (see below), whose sum is σ = 49755740141184. Its totient is φ = 7107901016160.

The previous prime is 21323795840189. The next prime is 21323795840197. The reversal of 21323795840196 is 69104859732312.

It is not an unprimeable number, because it can be changed into a prime (21323795840197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 902935 + ... + 6592638.

It is an arithmetic number, because the mean of its divisors is an integer number (2073155839216).

It is a 2-persistent number, because it is pandigital, and so is 2⋅21323795840196 = 42647591680392, but 3⋅21323795840196 = 63971387520588 is not.

Almost surely, 2^{21323795840196} is an apocalyptic number.

It is an amenable number.

21323795840196 is an abundant number, since it is smaller than the sum of its proper divisors (28431944300988).

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

21323795840196 is a wasteful number, since it uses less digits than its factorization.

21323795840196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7732651 (or 7732649 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 21323795840196 in words is "twenty-one trillion, three hundred twenty-three billion, seven hundred ninety-five million, eight hundred forty thousand, one hundred ninety-six".