143634566464993 has 2 divisors, whose sum is σ = 143634566464994. Its totient is φ = 143634566464992.

The previous prime is 143634566464979. The next prime is 143634566465011. The reversal of 143634566464993 is 399464665436341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102366173758689 + 41268392706304 = 10117617^2 + 6424048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143634566464993 is a prime.

It is not a weakly prime, because it can be changed into another prime (143634566464903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71817283232496 + 71817283232497.

It is an arithmetic number, because the mean of its divisors is an integer number (71817283232497).

Almost surely, 2^{143634566464993} is an apocalyptic number.

It is an amenable number.

143634566464993 is a deficient number, since it is larger than the sum of its proper divisors (1).

143634566464993 is an equidigital number, since it uses as much as digits as its factorization.

143634566464993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3627970560, while the sum is 73.

The spelling of 143634566464993 in words is "one hundred forty-three trillion, six hundred thirty-four billion, five hundred sixty-six million, four hundred sixty-four thousand, nine hundred ninety-three".