654051123563 has 2 divisors, whose sum is σ = 654051123564. Its totient is φ = 654051123562.

The previous prime is 654051123553. The next prime is 654051123617. The reversal of 654051123563 is 365321150456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654051123563 - 2¹² = 654051119467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 654051123563.

It is not a weakly prime, because it can be changed into another prime (654051123503) 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, 327025561781 + 327025561782.

It is an arithmetic number, because the mean of its divisors is an integer number (327025561782).

Almost surely, 2^654051123563 is an apocalyptic number.

654051123563 is a deficient number, since it is larger than the sum of its proper divisors (1).

654051123563 is an equidigital number, since it uses as much as digits as its factorization.

654051123563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 654051123563 in words is "six hundred fifty-four billion, fifty-one million, one hundred twenty-three thousand, five hundred sixty-three".