20722796093 has 2 divisors, whose sum is σ = 20722796094. Its totient is φ = 20722796092.

The previous prime is 20722796089. The next prime is 20722796111. The reversal of 20722796093 is 39069722702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15001840324 + 5720955769 = 122482^2 + 75637^2 .

It is a cyclic number.

It is not a de Polignac number, because 20722796093 - 2² = 20722796089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20722796023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10361398046 + 10361398047.

It is an arithmetic number, because the mean of its divisors is an integer number (10361398047).

Almost surely, 2^20722796093 is an apocalyptic number.

It is an amenable number.

20722796093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20722796093 is an equidigital number, since it uses as much as digits as its factorization.

20722796093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 47.

The spelling of 20722796093 in words is "twenty billion, seven hundred twenty-two million, seven hundred ninety-six thousand, ninety-three".