20432769275427 has 12 divisors (see below), whose sum is σ = 28753038206280. Its totient is φ = 12904906910112.

The previous prime is 20432769275417. The next prime is 20432769275437. The reversal of 20432769275427 is 72457296723402.

It is an interprime number because it is at equal distance from previous prime (20432769275417) and next prime (20432769275437).

It is not a de Polignac number, because 20432769275427 - 2¹¹ = 20432769273379 is a prime.

It is a super-2 number, since 2×20432769275427² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20432769275417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9433410402 + ... + 9433412567.

It is an arithmetic number, because the mean of its divisors is an integer number (2396086517190).

Almost surely, 2^{20432769275427} is an apocalyptic number.

20432769275427 is a deficient number, since it is larger than the sum of its proper divisors (8320268930853).

20432769275427 is a wasteful number, since it uses less digits than its factorization.

20432769275427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18866823010 (or 18866822991 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 60.

The spelling of 20432769275427 in words is "twenty trillion, four hundred thirty-two billion, seven hundred sixty-nine million, two hundred seventy-five thousand, four hundred twenty-seven".