20075632849 has 2 divisors, whose sum is σ = 20075632850. Its totient is φ = 20075632848.

The previous prime is 20075632831. The next prime is 20075632853. The reversal of 20075632849 is 94823657002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19118039824 + 957593025 = 138268^2 + 30945^2 .

It is a cyclic number.

It is not a de Polignac number, because 20075632849 - 2⁷ = 20075632721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20075632799 and 20075632808.

It is not a weakly prime, because it can be changed into another prime (20075632949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10037816424 + 10037816425.

It is an arithmetic number, because the mean of its divisors is an integer number (10037816425).

Almost surely, 2^20075632849 is an apocalyptic number.

It is an amenable number.

20075632849 is a deficient number, since it is larger than the sum of its proper divisors (1).

20075632849 is an equidigital number, since it uses as much as digits as its factorization.

20075632849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 20075632849 in words is "twenty billion, seventy-five million, six hundred thirty-two thousand, eight hundred forty-nine".