20503594967 has 2 divisors, whose sum is σ = 20503594968. Its totient is φ = 20503594966.

The previous prime is 20503594901. The next prime is 20503594997. The reversal of 20503594967 is 76949530502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20503594967 - 2¹² = 20503590871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20503594997) 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, 10251797483 + 10251797484.

It is an arithmetic number, because the mean of its divisors is an integer number (10251797484).

Almost surely, 2^20503594967 is an apocalyptic number.

20503594967 is a deficient number, since it is larger than the sum of its proper divisors (1).

20503594967 is an equidigital number, since it uses as much as digits as its factorization.

20503594967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2041200, while the sum is 50.

The spelling of 20503594967 in words is "twenty billion, five hundred three million, five hundred ninety-four thousand, nine hundred sixty-seven".