1268818039 has 8 divisors (see below), whose sum is σ = 1293518160. Its totient is φ = 1244146176.

The previous prime is 1268818013. The next prime is 1268818049. The reversal of 1268818039 is 9308188621.

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

It is a cyclic number.

It is not a de Polignac number, because 1268818039 - 2⁷ = 1268817911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1268818039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268818009) 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, 98839 + ... + 110935.

It is an arithmetic number, because the mean of its divisors is an integer number (161689770).

Almost surely, 2^1268818039 is an apocalyptic number.

1268818039 is a deficient number, since it is larger than the sum of its proper divisors (24700121).

1268818039 is a wasteful number, since it uses less digits than its factorization.

1268818039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14129.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 1268818039 is about 35620.4721894587. The cubic root of 1268818039 is about 1082.5960748697.

The spelling of 1268818039 in words is "one billion, two hundred sixty-eight million, eight hundred eighteen thousand, thirty-nine".