20852384724 has 36 divisors (see below), whose sum is σ = 52824081856. Its totient is φ = 6935776848.

The previous prime is 20852384687. The next prime is 20852384731. The reversal of 20852384724 is 42748325802.

20852384724 is a `hidden beast` number, since 20 + 8 + 523 + 84 + 7 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20852384724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 608854 + ... + 642189.

Almost surely, 2^20852384724 is an apocalyptic number.

It is an amenable number.

20852384724 is an abundant number, since it is smaller than the sum of its proper divisors (31971697132).

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

20852384724 is a wasteful number, since it uses less digits than its factorization.

20852384724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251516 (or 1251511 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 20852384724 in words is "twenty billion, eight hundred fifty-two million, three hundred eighty-four thousand, seven hundred twenty-four".