20812364014499 has 2 divisors, whose sum is σ = 20812364014500. Its totient is φ = 20812364014498.

The previous prime is 20812364014423. The next prime is 20812364014549. The reversal of 20812364014499 is 99441046321802.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20812364014499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20812364014499.

It is not a weakly prime, because it can be changed into another prime (20812364010499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10406182007249 + 10406182007250.

It is an arithmetic number, because the mean of its divisors is an integer number (10406182007250).

Almost surely, 2^{20812364014499} is an apocalyptic number.

20812364014499 is a deficient number, since it is larger than the sum of its proper divisors (1).

20812364014499 is an equidigital number, since it uses as much as digits as its factorization.

20812364014499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 20812364014499 in words is "twenty trillion, eight hundred twelve billion, three hundred sixty-four million, fourteen thousand, four hundred ninety-nine".