23543140663274 has 8 divisors (see below), whose sum is σ = 35314734127140. Its totient is φ = 11771562620896.

The previous prime is 23543140663243. The next prime is 23543140663277. The reversal of 23543140663274 is 47236604134532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18264896325025 + 5278244338249 = 4273745^2 + 2297443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (23543140663277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1386812 + ... + 7000680.

Almost surely, 2^{23543140663274} is an apocalyptic number.

23543140663274 is a deficient number, since it is larger than the sum of its proper divisors (11771593463866).

23543140663274 is a wasteful number, since it uses less digits than its factorization.

23543140663274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710744.

The product of its (nonzero) digits is 8709120, while the sum is 50.

The spelling of 23543140663274 in words is "twenty-three trillion, five hundred forty-three billion, one hundred forty million, six hundred sixty-three thousand, two hundred seventy-four".