20529282067 has 4 divisors (see below), whose sum is σ = 23462036656. Its totient is φ = 17596527480.

The previous prime is 20529282061. The next prime is 20529282071. The reversal of 20529282067 is 76028292502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76028292502 = 2 ⋅38014146251.

It is a de Polignac number, because none of the positive numbers 2^k-20529282067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20529282061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466377284 + ... + 1466377297.

It is an arithmetic number, because the mean of its divisors is an integer number (5865509164).

Almost surely, 2^20529282067 is an apocalyptic number.

20529282067 is a deficient number, since it is larger than the sum of its proper divisors (2932754589).

20529282067 is an equidigital number, since it uses as much as digits as its factorization.

20529282067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932754588.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20529282067 in words is "twenty billion, five hundred twenty-nine million, two hundred eighty-two thousand, sixty-seven".