20899270589 has 8 divisors (see below), whose sum is σ = 21718233600. Its totient is φ = 20089357200.

The previous prime is 20899270547. The next prime is 20899270619. The reversal of 20899270589 is 98507299802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20899270589 is a prime.

It is a super-2 number, since 2×20899270589² (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 (20899270519) 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, 2257697 + ... + 2266934.

It is an arithmetic number, because the mean of its divisors is an integer number (2714779200).

Almost surely, 2^20899270589 is an apocalyptic number.

It is an amenable number.

20899270589 is a deficient number, since it is larger than the sum of its proper divisors (818963011).

20899270589 is a wasteful number, since it uses less digits than its factorization.

20899270589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524811.

The product of its (nonzero) digits is 6531840, while the sum is 59.

The spelling of 20899270589 in words is "twenty billion, eight hundred ninety-nine million, two hundred seventy thousand, five hundred eighty-nine".