20734706028 has 24 divisors (see below), whose sum is σ = 48386392432. Its totient is φ = 6910795584.

The previous prime is 20734706009. The next prime is 20734706059. The reversal of 20734706028 is 82060743702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20826 + ... + 204702.

Almost surely, 2^20734706028 is an apocalyptic number.

It is an amenable number.

20734706028 is an abundant number, since it is smaller than the sum of its proper divisors (27651686404).

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

20734706028 is a wasteful number, since it uses less digits than its factorization.

20734706028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193281 (or 193279 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 20734706028 in words is "twenty billion, seven hundred thirty-four million, seven hundred six thousand, twenty-eight".