1268944579 has 8 divisors (see below), whose sum is σ = 1450532448. Its totient is φ = 1087434240.

The previous prime is 1268944543. The next prime is 1268944601. The reversal of 1268944579 is 9754498621.

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 1268944579 - 2²¹ = 1266847427 is a prime.

It is a super-2 number, since 2×1268944579² = 3220440689146974482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268948579) 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, 21429 + ... + 54745.

It is an arithmetic number, because the mean of its divisors is an integer number (181316556).

Almost surely, 2^1268944579 is an apocalyptic number.

1268944579 is a deficient number, since it is larger than the sum of its proper divisors (181587869).

1268944579 is an equidigital number, since it uses as much as digits as its factorization.

1268944579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38765.

The product of its digits is 4354560, while the sum is 55.

The square root of 1268944579 is about 35622.2483709268. The cubic root of 1268944579 is about 1082.6320629965.

The spelling of 1268944579 in words is "one billion, two hundred sixty-eight million, nine hundred forty-four thousand, five hundred seventy-nine".