23647257690373 has 2 divisors, whose sum is σ = 23647257690374. Its totient is φ = 23647257690372.

The previous prime is 23647257690313. The next prime is 23647257690439. The reversal of 23647257690373 is 37309675274632.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21884741240769 + 1762516449604 = 4678113^2 + 1327598^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23647257690373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23647257690313) 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, 11823628845186 + 11823628845187.

It is an arithmetic number, because the mean of its divisors is an integer number (11823628845187).

Almost surely, 2^{23647257690373} is an apocalyptic number.

It is an amenable number.

23647257690373 is a deficient number, since it is larger than the sum of its proper divisors (1).

23647257690373 is an equidigital number, since it uses as much as digits as its factorization.

23647257690373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240045120, while the sum is 64.

The spelling of 23647257690373 in words is "twenty-three trillion, six hundred forty-seven billion, two hundred fifty-seven million, six hundred ninety thousand, three hundred seventy-three".