20589240771 has 16 divisors (see below), whose sum is σ = 33275541120. Its totient is φ = 12478327560.

The previous prime is 20589240761. The next prime is 20589240781. The reversal of 20589240771 is 17704298502.

It is a happy number.

20589240771 is a `hidden beast` number, since 20 + 589 + 2 + 40 + 7 + 7 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20589240761) and next prime (20589240781).

It is not a de Polignac number, because 20589240771 - 2⁵ = 20589240739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20589240701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34661725 + ... + 34662318.

It is an arithmetic number, because the mean of its divisors is an integer number (2079721320).

Almost surely, 2^20589240771 is an apocalyptic number.

20589240771 is a deficient number, since it is larger than the sum of its proper divisors (12686300349).

20589240771 is a wasteful number, since it uses less digits than its factorization.

20589240771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69324063 (or 69324057 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 20589240771 in words is "twenty billion, five hundred eighty-nine million, two hundred forty thousand, seven hundred seventy-one".