20492709843745 has 8 divisors (see below), whose sum is σ = 24591299664384. Its totient is φ = 16394135973744.

The previous prime is 20492709843737. The next prime is 20492709843779. The reversal of 20492709843745 is 54734890729402.

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 20492709843745 - 2³ = 20492709843737 is a prime.

It is a Duffinian 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, 950959 + ... + 6472228.

It is an arithmetic number, because the mean of its divisors is an integer number (3073912458048).

Almost surely, 2^{20492709843745} is an apocalyptic number.

It is an amenable number.

20492709843745 is a deficient number, since it is larger than the sum of its proper divisors (4098589820639).

20492709843745 is an equidigital number, since it uses as much as digits as its factorization.

20492709843745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7975319.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 20492709843745 in words is "twenty trillion, four hundred ninety-two billion, seven hundred nine million, eight hundred forty-three thousand, seven hundred forty-five".