20810444832 has 120 divisors (see below), whose sum is σ = 63177472512. Its totient is φ = 6713020800.

The previous prime is 20810444807. The next prime is 20810444839. The reversal of 20810444832 is 23844401802.

20810444832 is a `hidden beast` number, since 208 + 1 + 0 + 4 + 448 + 3 + 2 = 666.

It is a super-2 number, since 2×20810444832² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20810444839) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49144 + ... + 209847.

Almost surely, 2^20810444832 is an apocalyptic number.

It is an amenable number.

20810444832 is an abundant number, since it is smaller than the sum of its proper divisors (42367027680).

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

20810444832 is a wasteful number, since it uses less digits than its factorization.

20810444832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259044 (or 259027 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The spelling of 20810444832 in words is "twenty billion, eight hundred ten million, four hundred forty-four thousand, eight hundred thirty-two".