12924451618 has 16 divisors (see below), whose sum is σ = 21231826560. Its totient is φ = 5864026896.

The previous prime is 12924451601. The next prime is 12924451619. The reversal of 12924451618 is 81615442921.

It is not an unprimeable number, because it can be changed into a prime (12924451619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211130 + ... + 4214197.

It is an arithmetic number, because the mean of its divisors is an integer number (1326989160).

Almost surely, 2^12924451618 is an apocalyptic number.

12924451618 is a deficient number, since it is larger than the sum of its proper divisors (8307374942).

12924451618 is a wasteful number, since it uses less digits than its factorization.

12924451618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425401.

The product of its digits is 138240, while the sum is 43.

The spelling of 12924451618 in words is "twelve billion, nine hundred twenty-four million, four hundred fifty-one thousand, six hundred eighteen".