20812967363 has 2 divisors, whose sum is σ = 20812967364. Its totient is φ = 20812967362.

The previous prime is 20812967353. The next prime is 20812967389. The reversal of 20812967363 is 36376921802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20812967363 - 2¹⁶ = 20812901827 is a prime.

It is a super-2 number, since 2×20812967363² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20812967353) 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, 10406483681 + 10406483682.

It is an arithmetic number, because the mean of its divisors is an integer number (10406483682).

Almost surely, 2^20812967363 is an apocalyptic number.

20812967363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20812967363 is an equidigital number, since it uses as much as digits as its factorization.

20812967363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 20812967363 in words is "twenty billion, eight hundred twelve million, nine hundred sixty-seven thousand, three hundred sixty-three".