23534566543457 has 2 divisors, whose sum is σ = 23534566543458. Its totient is φ = 23534566543456.

The previous prime is 23534566543393. The next prime is 23534566543561. The reversal of 23534566543457 is 75434566543532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15713684474401 + 7820882069056 = 3964049^2 + 2796584^2 .

It is a cyclic number.

It is not a de Polignac number, because 23534566543457 - 2⁶ = 23534566543393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23534566543457.

It is not a weakly prime, because it can be changed into another prime (23534566503457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11767283271728 + 11767283271729.

It is an arithmetic number, because the mean of its divisors is an integer number (11767283271729).

Almost surely, 2^{23534566543457} is an apocalyptic number.

It is an amenable number.

23534566543457 is a deficient number, since it is larger than the sum of its proper divisors (1).

23534566543457 is an equidigital number, since it uses as much as digits as its factorization.

23534566543457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320000, while the sum is 62.

The spelling of 23534566543457 in words is "twenty-three trillion, five hundred thirty-four billion, five hundred sixty-six million, five hundred forty-three thousand, four hundred fifty-seven".