20282757329 has 2 divisors, whose sum is σ = 20282757330. Its totient is φ = 20282757328.

The previous prime is 20282757301. The next prime is 20282757337. The reversal of 20282757329 is 92375728202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12353211025 + 7929546304 = 111145^2 + 89048^2 .

It is a cyclic number.

It is not a de Polignac number, because 20282757329 - 2²⁰ = 20281708753 is a prime.

It is a super-2 number, since 2×20282757329² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20282757349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10141378664 + 10141378665.

It is an arithmetic number, because the mean of its divisors is an integer number (10141378665).

Almost surely, 2^20282757329 is an apocalyptic number.

It is an amenable number.

20282757329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20282757329 is an equidigital number, since it uses as much as digits as its factorization.

20282757329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 20282757329 in words is "twenty billion, two hundred eighty-two million, seven hundred fifty-seven thousand, three hundred twenty-nine".