20878360375243 has 8 divisors (see below), whose sum is σ = 23913195506912. Its totient is φ = 17856578298816.

The previous prime is 20878360375237. The next prime is 20878360375289. The reversal of 20878360375243 is 34257306387802.

It is a happy number.

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 20878360375243 - 2¹⁷ = 20878360244171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20878360379243) 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, 3263260380 + ... + 3263266777.

It is an arithmetic number, because the mean of its divisors is an integer number (2989149438364).

Almost surely, 2^{20878360375243} is an apocalyptic number.

20878360375243 is a deficient number, since it is larger than the sum of its proper divisors (3034835131669).

20878360375243 is an equidigital number, since it uses as much as digits as its factorization.

20878360375243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526527621.

The product of its (nonzero) digits is 40642560, while the sum is 58.

The spelling of 20878360375243 in words is "twenty trillion, eight hundred seventy-eight billion, three hundred sixty million, three hundred seventy-five thousand, two hundred forty-three".