20047985627 has 4 divisors (see below), whose sum is σ = 20919637200. Its totient is φ = 19176334056.

The previous prime is 20047985623. The next prime is 20047985647. The reversal of 20047985627 is 72658974002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72658974002 = 2 ⋅36329487001.

It is a cyclic number.

It is not a de Polignac number, because 20047985627 - 2² = 20047985623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20047985623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435825752 + ... + 435825797.

It is an arithmetic number, because the mean of its divisors is an integer number (5229909300).

Almost surely, 2^20047985627 is an apocalyptic number.

20047985627 is a deficient number, since it is larger than the sum of its proper divisors (871651573).

20047985627 is an equidigital number, since it uses as much as digits as its factorization.

20047985627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871651572.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 20047985627 in words is "twenty billion, forty-seven million, nine hundred eighty-five thousand, six hundred twenty-seven".