12345678586 has 4 divisors (see below), whose sum is σ = 18518517882. Its totient is φ = 6172839292.

The previous prime is 12345678581. The next prime is 12345678599. The reversal of 12345678586 is 68587654321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11505780225 + 839898361 = 107265^2 + 28981^2 .

It is not an unprimeable number, because it can be changed into a prime (12345678581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3086419645 + ... + 3086419648.

Almost surely, 2^12345678586 is an apocalyptic number.

12345678586 is a deficient number, since it is larger than the sum of its proper divisors (6172839296).

12345678586 is an equidigital number, since it uses as much as digits as its factorization.

12345678586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172839295.

The product of its digits is 9676800, while the sum is 55.

The spelling of 12345678586 in words is "twelve billion, three hundred forty-five million, six hundred seventy-eight thousand, five hundred eighty-six".