20717524473 has 8 divisors (see below), whose sum is σ = 27624075936. Its totient is φ = 13811328000.

The previous prime is 20717524433. The next prime is 20717524537. The reversal of 20717524473 is 37442571702.

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

It is not a de Polignac number, because 20717524473 - 2¹⁴ = 20717508089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20717524403) 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, 112858 + ... + 232748.

It is an arithmetic number, because the mean of its divisors is an integer number (3453009492).

Almost surely, 2^20717524473 is an apocalyptic number.

It is an amenable number.

20717524473 is a deficient number, since it is larger than the sum of its proper divisors (6906551463).

20717524473 is a wasteful number, since it uses less digits than its factorization.

20717524473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177495.

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 20717524473 in words is "twenty billion, seven hundred seventeen million, five hundred twenty-four thousand, four hundred seventy-three".