20422505347 has 4 divisors (see below), whose sum is σ = 20426529816. Its totient is φ = 20418480880.

The previous prime is 20422505333. The next prime is 20422505393. The reversal of 20422505347 is 74350522402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20422505347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20422545347) 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, 2004613 + ... + 2014774.

It is an arithmetic number, because the mean of its divisors is an integer number (5106632454).

Almost surely, 2^20422505347 is an apocalyptic number.

20422505347 is a deficient number, since it is larger than the sum of its proper divisors (4024469).

20422505347 is an equidigital number, since it uses as much as digits as its factorization.

20422505347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024468.

The product of its (nonzero) digits is 67200, while the sum is 34.

The spelling of 20422505347 in words is "twenty billion, four hundred twenty-two million, five hundred five thousand, three hundred forty-seven".