23954534669557 has 2 divisors, whose sum is σ = 23954534669558. Its totient is φ = 23954534669556.

The previous prime is 23954534669539. The next prime is 23954534669627. The reversal of 23954534669557 is 75596643545932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23862746272401 + 91788397156 = 4884951^2 + 302966^2 .

It is a cyclic number.

It is not a de Polignac number, because 23954534669557 - 2³⁹ = 23404778855669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23954534669557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23954534669057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11977267334778 + 11977267334779.

It is an arithmetic number, because the mean of its divisors is an integer number (11977267334779).

Almost surely, 2^{23954534669557} is an apocalyptic number.

It is an amenable number.

23954534669557 is a deficient number, since it is larger than the sum of its proper divisors (1).

23954534669557 is an equidigital number, since it uses as much as digits as its factorization.

23954534669557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160000, while the sum is 73.

The spelling of 23954534669557 in words is "twenty-three trillion, nine hundred fifty-four billion, five hundred thirty-four million, six hundred sixty-nine thousand, five hundred fifty-seven".