20812364010499 has 2 divisors, whose sum is σ = 20812364010500. Its totient is φ = 20812364010498.

The previous prime is 20812364010497. The next prime is 20812364010539. The reversal of 20812364010499 is 99401046321802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20812364010499 - 2¹ = 20812364010497 is a prime.

Together with 20812364010497, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20812364010497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10406182005249 + 10406182005250.

It is an arithmetic number, because the mean of its divisors is an integer number (10406182005250).

Almost surely, 2^{20812364010499} is an apocalyptic number.

20812364010499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20812364010499 is an equidigital number, since it uses as much as digits as its factorization.

20812364010499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 20812364010499 in words is "twenty trillion, eight hundred twelve billion, three hundred sixty-four million, ten thousand, four hundred ninety-nine".