20730570848 has 96 divisors (see below), whose sum is σ = 46645339104. Its totient is φ = 8984420352.

The previous prime is 20730570799. The next prime is 20730570851. The reversal of 20730570848 is 84807503702.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20730570799 and 20730570808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3299486 + ... + 3305762.

It is an arithmetic number, because the mean of its divisors is an integer number (485888949).

Almost surely, 2^20730570848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20730570848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23322669552).

20730570848 is an abundant number, since it is smaller than the sum of its proper divisors (25914768256).

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

20730570848 is a wasteful number, since it uses less digits than its factorization.

20730570848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784 (or 6776 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 20730570848 in words is "twenty billion, seven hundred thirty million, five hundred seventy thousand, eight hundred forty-eight".