20484309607 has 4 divisors (see below), whose sum is σ = 20496584680. Its totient is φ = 20472034536.

The previous prime is 20484309577. The next prime is 20484309623. The reversal of 20484309607 is 70690348402.

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 20484309607 - 2²³ = 20475920999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20484309107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6135033 + ... + 6138370.

It is an arithmetic number, because the mean of its divisors is an integer number (5124146170).

Almost surely, 2^20484309607 is an apocalyptic number.

20484309607 is a deficient number, since it is larger than the sum of its proper divisors (12275073).

20484309607 is a wasteful number, since it uses less digits than its factorization.

20484309607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12275072.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 20484309607 in words is "twenty billion, four hundred eighty-four million, three hundred nine thousand, six hundred seven".