20368344895 has 8 divisors (see below), whose sum is σ = 25879779504. Its totient is φ = 15336165504.

The previous prime is 20368344883. The next prime is 20368344901. The reversal of 20368344895 is 59844386302.

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 20368344895 - 2⁹ = 20368344383 is a prime.

It is a super-2 number, since 2×20368344895² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119813709 + ... + 119813878.

It is an arithmetic number, because the mean of its divisors is an integer number (3234972438).

Almost surely, 2^20368344895 is an apocalyptic number.

20368344895 is a deficient number, since it is larger than the sum of its proper divisors (5511434609).

20368344895 is a wasteful number, since it uses less digits than its factorization.

20368344895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239627609.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 20368344895 in words is "twenty billion, three hundred sixty-eight million, three hundred forty-four thousand, eight hundred ninety-five".