20423505036846 has 32 divisors (see below), whose sum is σ = 42691151694240. Its totient is φ = 6505318342656.

The previous prime is 20423505036839. The next prime is 20423505036871. The reversal of 20423505036846 is 64863050532402.

It is a junction number, because it is equal to n+sod(n) for n = 20423505036795 and 20423505036804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605016451 + ... + 605050206.

It is an arithmetic number, because the mean of its divisors is an integer number (1334098490445).

Almost surely, 2^{20423505036846} is an apocalyptic number.

20423505036846 is an abundant number, since it is smaller than the sum of its proper divisors (22267646657394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423505036846 is a wasteful number, since it uses less digits than its factorization.

20423505036846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210066788.

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 20423505036846 in words is "twenty trillion, four hundred twenty-three billion, five hundred five million, thirty-six thousand, eight hundred forty-six".