1246668899 has 8 divisors (see below), whose sum is σ = 1435015680. Its totient is φ = 1060884936.

The previous prime is 1246668889. The next prime is 1246668953. The reversal of 1246668899 is 9988666421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1246668899 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1246668859) 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, 639659 + ... + 641604.

It is an arithmetic number, because the mean of its divisors is an integer number (179376960).

Almost surely, 2^1246668899 is an apocalyptic number.

1246668899 is a deficient number, since it is larger than the sum of its proper divisors (188346781).

1246668899 is a wasteful number, since it uses less digits than its factorization.

1246668899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281409.

The product of its digits is 8957952, while the sum is 59.

The square root of 1246668899 is about 35308.1987504319. The cubic root of 1246668899 is about 1076.2596084868.

The spelling of 1246668899 in words is "one billion, two hundred forty-six million, six hundred sixty-eight thousand, eight hundred ninety-nine".