654679541863 has 2 divisors, whose sum is σ = 654679541864. Its totient is φ = 654679541862.

The previous prime is 654679541851. The next prime is 654679541909. The reversal of 654679541863 is 368145976456.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654679541863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 654679541795 and 654679541804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (654679541843) 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, 327339770931 + 327339770932.

It is an arithmetic number, because the mean of its divisors is an integer number (327339770932).

Almost surely, 2^654679541863 is an apocalyptic number.

654679541863 is a deficient number, since it is larger than the sum of its proper divisors (1).

654679541863 is an equidigital number, since it uses as much as digits as its factorization.

654679541863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 130636800, while the sum is 64.

The spelling of 654679541863 in words is "six hundred fifty-four billion, six hundred seventy-nine million, five hundred forty-one thousand, eight hundred sixty-three".