20445002823 has 8 divisors (see below), whose sum is σ = 31154290048. Its totient is φ = 11682858744.

The previous prime is 20445002807. The next prime is 20445002827. The reversal of 20445002823 is 32820054402.

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

It is not a de Polignac number, because 20445002823 - 2⁴ = 20445002807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20445002827) by changing a digit.

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, 486785761 + ... + 486785802.

It is an arithmetic number, because the mean of its divisors is an integer number (3894286256).

Almost surely, 2^20445002823 is an apocalyptic number.

20445002823 is a deficient number, since it is larger than the sum of its proper divisors (10709287225).

20445002823 is an equidigital number, since it uses as much as digits as its factorization.

20445002823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973571573.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 20445002823 in words is "twenty billion, four hundred forty-five million, two thousand, eight hundred twenty-three".