20432447083 has 4 divisors (see below), whose sum is σ = 20450642728. Its totient is φ = 20414251440.

The previous prime is 20432447051. The next prime is 20432447093. The reversal of 20432447083 is 38074423402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20432447083 - 2⁵ = 20432447051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20432447093) 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 3 ways as a sum of consecutive naturals, for example, 9096138 + ... + 9098383.

It is an arithmetic number, because the mean of its divisors is an integer number (5112660682).

Almost surely, 2^20432447083 is an apocalyptic number.

20432447083 is a deficient number, since it is larger than the sum of its proper divisors (18195645).

20432447083 is a wasteful number, since it uses less digits than its factorization.

20432447083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18195644.

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 20432447083 in words is "twenty billion, four hundred thirty-two million, four hundred forty-seven thousand, eighty-three".