20267236963 has 2 divisors, whose sum is σ = 20267236964. Its totient is φ = 20267236962.

The previous prime is 20267236943. The next prime is 20267237017. The reversal of 20267236963 is 36963276202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20267236963 is a prime.

It is a super-2 number, since 2×20267236963² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20267236943) 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, 10133618481 + 10133618482.

It is an arithmetic number, because the mean of its divisors is an integer number (10133618482).

Almost surely, 2^20267236963 is an apocalyptic number.

20267236963 is a deficient number, since it is larger than the sum of its proper divisors (1).

20267236963 is an equidigital number, since it uses as much as digits as its factorization.

20267236963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 46.

The spelling of 20267236963 in words is "twenty billion, two hundred sixty-seven million, two hundred thirty-six thousand, nine hundred sixty-three".