21063792904019 has 2 divisors, whose sum is σ = 21063792904020. Its totient is φ = 21063792904018.

The previous prime is 21063792903997. The next prime is 21063792904067. The reversal of 21063792904019 is 91040929736012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21063792904019 - 2⁸ = 21063792903763 is a prime.

It is a super-2 number, since 2×21063792904019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21063792904069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10531896452009 + 10531896452010.

It is an arithmetic number, because the mean of its divisors is an integer number (10531896452010).

Almost surely, 2^{21063792904019} is an apocalyptic number.

21063792904019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21063792904019 is an equidigital number, since it uses as much as digits as its factorization.

21063792904019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 21063792904019 in words is "twenty-one trillion, sixty-three billion, seven hundred ninety-two million, nine hundred four thousand, nineteen".