20734314720 has 288 divisors, whose sum is σ = 76945075200. Its totient is φ = 4678861824.

The previous prime is 20734314719. The next prime is 20734314763. The reversal of 20734314720 is 2741343702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1852501 + ... + 1863659.

It is an arithmetic number, because the mean of its divisors is an integer number (267170400).

Almost surely, 2^20734314720 is an apocalyptic number.

20734314720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20734314720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38472537600).

20734314720 is an abundant number, since it is smaller than the sum of its proper divisors (56210760480).

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

20734314720 is a wasteful number, since it uses less digits than its factorization.

20734314720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270 (or 11255 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 33.

The spelling of 20734314720 in words is "twenty billion, seven hundred thirty-four million, three hundred fourteen thousand, seven hundred twenty".