8686462493 has 2 divisors, whose sum is σ = 8686462494. Its totient is φ = 8686462492.

The previous prime is 8686462453. The next prime is 8686462513. The reversal of 8686462493 is 3942646868.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8343360964 + 343101529 = 91342^2 + 18523^2 .

It is a cyclic number.

It is not a de Polignac number, because 8686462493 - 2¹⁸ = 8686200349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8686462453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4343231246 + 4343231247.

It is an arithmetic number, because the mean of its divisors is an integer number (4343231247).

Almost surely, 2^8686462493 is an apocalyptic number.

It is an amenable number.

8686462493 is a deficient number, since it is larger than the sum of its proper divisors (1).

8686462493 is an equidigital number, since it uses as much as digits as its factorization.

8686462493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11943936, while the sum is 56.

The square root of 8686462493 is about 93201.1936243308. The cubic root of 8686462493 is about 2055.6427912437.

The spelling of 8686462493 in words is "eight billion, six hundred eighty-six million, four hundred sixty-two thousand, four hundred ninety-three".