20604710447 has 8 divisors (see below), whose sum is σ = 21818543616. Its totient is φ = 19391076352.

The previous prime is 20604710437. The next prime is 20604710501. The reversal of 20604710447 is 74401740602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20604710447 - 2⁶ = 20604710383 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 (20604710437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198863 + ... + 284175.

It is an arithmetic number, because the mean of its divisors is an integer number (2727317952).

Almost surely, 2^20604710447 is an apocalyptic number.

20604710447 is a deficient number, since it is larger than the sum of its proper divisors (1213833169).

20604710447 is a wasteful number, since it uses less digits than its factorization.

20604710447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99537.

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 20604710447 in words is "twenty billion, six hundred four million, seven hundred ten thousand, four hundred forty-seven".