20730273612 has 24 divisors (see below), whose sum is σ = 50473710336. Its totient is φ = 6609652368.

The previous prime is 20730273587. The next prime is 20730273661. The reversal of 20730273612 is 21637203702.

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, 37554568 + ... + 37555119.

It is an arithmetic number, because the mean of its divisors is an integer number (2103071264).

Almost surely, 2^20730273612 is an apocalyptic number.

It is an amenable number.

20730273612 is an abundant number, since it is smaller than the sum of its proper divisors (29743436724).

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

20730273612 is a wasteful number, since it uses less digits than its factorization.

20730273612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75109717 (or 75109715 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The spelling of 20730273612 in words is "twenty billion, seven hundred thirty million, two hundred seventy-three thousand, six hundred twelve".