20354461636763 has 2 divisors, whose sum is σ = 20354461636764. Its totient is φ = 20354461636762.

The previous prime is 20354461636753. The next prime is 20354461636799. The reversal of 20354461636763 is 36763616445302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20354461636763 - 2³⁶ = 20285742160027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20354461636699 and 20354461636708.

It is not a weakly prime, because it can be changed into another prime (20354461636753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10177230818381 + 10177230818382.

It is an arithmetic number, because the mean of its divisors is an integer number (10177230818382).

Almost surely, 2^{20354461636763} is an apocalyptic number.

20354461636763 is a deficient number, since it is larger than the sum of its proper divisors (1).

20354461636763 is an equidigital number, since it uses as much as digits as its factorization.

20354461636763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 56.

The spelling of 20354461636763 in words is "twenty trillion, three hundred fifty-four billion, four hundred sixty-one million, six hundred thirty-six thousand, seven hundred sixty-three".