20826085897 has 8 divisors (see below), whose sum is σ = 22045256640. Its totient is φ = 19640317200.

The previous prime is 20826085879. The next prime is 20826086027. The reversal of 20826085897 is 79858062802.

It is a happy number.

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 20826085897 - 2²³ = 20817697289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20826085817) 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, 8349229 + ... + 8351722.

It is an arithmetic number, because the mean of its divisors is an integer number (2755657080).

Almost surely, 2^20826085897 is an apocalyptic number.

It is an amenable number.

20826085897 is a deficient number, since it is larger than the sum of its proper divisors (1219170743).

20826085897 is a wasteful number, since it uses less digits than its factorization.

20826085897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16701023.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 20826085897 in words is "twenty billion, eight hundred twenty-six million, eighty-five thousand, eight hundred ninety-seven".