20826802741 has 2 divisors, whose sum is σ = 20826802742. Its totient is φ = 20826802740.

The previous prime is 20826802693. The next prime is 20826802753. The reversal of 20826802741 is 14720862802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20808062500 + 18740241 = 144250^2 + 4329^2 .

It is a cyclic number.

It is not a de Polignac number, because 20826802741 - 2¹⁷ = 20826671669 is a prime.

It is a super-2 number, since 2×20826802741² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20826802694 and 20826802703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20826802781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10413401370 + 10413401371.

It is an arithmetic number, because the mean of its divisors is an integer number (10413401371).

Almost surely, 2^20826802741 is an apocalyptic number.

It is an amenable number.

20826802741 is a deficient number, since it is larger than the sum of its proper divisors (1).

20826802741 is an equidigital number, since it uses as much as digits as its factorization.

20826802741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 20826802741 in words is "twenty billion, eight hundred twenty-six million, eight hundred two thousand, seven hundred forty-one".