193820714593921 has 8 divisors (see below), whose sum is σ = 194668634654720. Its totient is φ = 192972807937008.

The previous prime is 193820714593829. The next prime is 193820714593939. The reversal of 193820714593921 is 129395417028391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 193820714593921 - 2²¹ = 193820712496769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193820714593981) 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, 26201170 + ... + 32774116.

It is an arithmetic number, because the mean of its divisors is an integer number (24333579331840).

Almost surely, 2^{193820714593921} is an apocalyptic number.

It is an amenable number.

193820714593921 is a deficient number, since it is larger than the sum of its proper divisors (847920060799).

193820714593921 is a wasteful number, since it uses less digits than its factorization.

193820714593921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701943.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 193820714593921 in words is "one hundred ninety-three trillion, eight hundred twenty billion, seven hundred fourteen million, five hundred ninety-three thousand, nine hundred twenty-one".