20042887027 has 4 divisors (see below), whose sum is σ = 20072233080. Its totient is φ = 20013540976.

The previous prime is 20042887019. The next prime is 20042887043. The reversal of 20042887027 is 72078824002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20042887027 - 2³ = 20042887019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042887327) 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, 14672002 + ... + 14673367.

It is an arithmetic number, because the mean of its divisors is an integer number (5018058270).

Almost surely, 2^20042887027 is an apocalyptic number.

20042887027 is a deficient number, since it is larger than the sum of its proper divisors (29346053).

20042887027 is an equidigital number, since it uses as much as digits as its factorization.

20042887027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29346052.

The product of its (nonzero) digits is 100352, while the sum is 40.

The spelling of 20042887027 in words is "twenty billion, forty-two million, eight hundred eighty-seven thousand, twenty-seven".