20942027585 has 32 divisors (see below), whose sum is σ = 26234191872. Its totient is φ = 16037300160.

The previous prime is 20942027581. The next prime is 20942027599. The reversal of 20942027585 is 58572024902.

It is not a de Polignac number, because 20942027585 - 2² = 20942027581 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20942027581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2114054 + ... + 2123936.

It is an arithmetic number, because the mean of its divisors is an integer number (819818496).

Almost surely, 2^20942027585 is an apocalyptic number.

It is an amenable number.

20942027585 is a deficient number, since it is larger than the sum of its proper divisors (5292164287).

20942027585 is a wasteful number, since it uses less digits than its factorization.

20942027585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 20942027585 in words is "twenty billion, nine hundred forty-two million, twenty-seven thousand, five hundred eighty-five".