20470597589 has 8 divisors (see below), whose sum is σ = 22193215800. Its totient is φ = 18769116096.

The previous prime is 20470597519. The next prime is 20470597601. The reversal of 20470597589 is 98579507402.

It can be written as a sum of positive squares in 4 ways, for example, as 244922500 + 20225675089 = 15650^2 + 142217^2 .

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 20470597589 - 2¹⁶ = 20470532053 is a prime.

It is a super-2 number, since 2×20470597589² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20470597519) 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, 5282162 + ... + 5286035.

It is an arithmetic number, because the mean of its divisors is an integer number (2774151975).

Almost surely, 2^20470597589 is an apocalyptic number.

It is an amenable number.

20470597589 is a deficient number, since it is larger than the sum of its proper divisors (1722618211).

20470597589 is a wasteful number, since it uses less digits than its factorization.

20470597589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10568359.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 20470597589 in words is "twenty billion, four hundred seventy million, five hundred ninety-seven thousand, five hundred eighty-nine".