20011095827797 has 2 divisors, whose sum is σ = 20011095827798. Its totient is φ = 20011095827796.

The previous prime is 20011095827791. The next prime is 20011095827873. The reversal of 20011095827797 is 79772859011002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11684460408516 + 8326635419281 = 3418254^2 + 2885591^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011095827797 - 2¹⁵ = 20011095795029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011095827791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005547913898 + 10005547913899.

It is an arithmetic number, because the mean of its divisors is an integer number (10005547913899).

Almost surely, 2^{20011095827797} is an apocalyptic number.

It is an amenable number.

20011095827797 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011095827797 is an equidigital number, since it uses as much as digits as its factorization.

20011095827797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4445280, while the sum is 58.

The spelling of 20011095827797 in words is "twenty trillion, eleven billion, ninety-five million, eight hundred twenty-seven thousand, seven hundred ninety-seven".