8632318493 has 2 divisors, whose sum is σ = 8632318494. Its totient is φ = 8632318492.

The previous prime is 8632318477. The next prime is 8632318517. The reversal of 8632318493 is 3948132368.

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., 7575613444 + 1056705049 = 87038^2 + 32507^2 .

It is a cyclic number.

It is not a de Polignac number, because 8632318493 - 2⁴ = 8632318477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8632317493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4316159246 + 4316159247.

It is an arithmetic number, because the mean of its divisors is an integer number (4316159247).

Almost surely, 2^8632318493 is an apocalyptic number.

It is an amenable number.

8632318493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8632318493 is an equidigital number, since it uses as much as digits as its factorization.

8632318493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The square root of 8632318493 is about 92910.2711921561. The cubic root of 8632318493 is about 2051.3628449565.

The spelling of 8632318493 in words is "eight billion, six hundred thirty-two million, three hundred eighteen thousand, four hundred ninety-three".