20814482592 has 108 divisors (see below), whose sum is σ = 61877060154. Its totient is φ = 6636453120.

The previous prime is 20814482561. The next prime is 20814482609. The reversal of 20814482592 is 29528441802.

20814482592 is a `hidden beast` number, since 2 + 0 + 8 + 14 + 48 + 2 + 592 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19735754256 + 1078728336 = 140484^2 + 32844^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 84042 + ... + 220662.

Almost surely, 2^20814482592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20814482592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30938530077).

20814482592 is an abundant number, since it is smaller than the sum of its proper divisors (41062577562).

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

20814482592 is a wasteful number, since it uses less digits than its factorization.

20814482592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136683 (or 136649 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 20814482592 in words is "twenty billion, eight hundred fourteen million, four hundred eighty-two thousand, five hundred ninety-two".