20514573841 has 2 divisors, whose sum is σ = 20514573842. Its totient is φ = 20514573840.

The previous prime is 20514573787. The next prime is 20514573851. The reversal of 20514573841 is 14837541502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19466109441 + 1048464400 = 139521^2 + 32380^2 .

It is a cyclic number.

It is not a de Polignac number, because 20514573841 - 2⁷ = 20514573713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20514573794 and 20514573803.

It is not a weakly prime, because it can be changed into another prime (20514573851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10257286920 + 10257286921.

It is an arithmetic number, because the mean of its divisors is an integer number (10257286921).

Almost surely, 2^20514573841 is an apocalyptic number.

It is an amenable number.

20514573841 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514573841 is an equidigital number, since it uses as much as digits as its factorization.

20514573841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 20514573841 in words is "twenty billion, five hundred fourteen million, five hundred seventy-three thousand, eight hundred forty-one".