20075684028 has 12 divisors (see below), whose sum is σ = 46843262760. Its totient is φ = 6691894672.

The previous prime is 20075684017. The next prime is 20075684033. The reversal of 20075684028 is 82048657002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836486823 + ... + 836486846.

It is an arithmetic number, because the mean of its divisors is an integer number (3903605230).

Almost surely, 2^20075684028 is an apocalyptic number.

It is an amenable number.

20075684028 is an abundant number, since it is smaller than the sum of its proper divisors (26767578732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20075684028 is a wasteful number, since it uses less digits than its factorization.

20075684028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672973676 (or 1672973674 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The spelling of 20075684028 in words is "twenty billion, seventy-five million, six hundred eighty-four thousand, twenty-eight".