1279755875 has 8 divisors (see below), whose sum is σ = 1597135488. Its totient is φ = 1023804600.

The previous prime is 1279755847. The next prime is 1279755881. The reversal of 1279755875 is 5785579721.

It is not a de Polignac number, because 1279755875 - 2¹⁸ = 1279493731 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 1279755875.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118899 + ... + 5119148.

It is an arithmetic number, because the mean of its divisors is an integer number (199641936).

Almost surely, 2^1279755875 is an apocalyptic number.

1279755875 is a deficient number, since it is larger than the sum of its proper divisors (317379613).

1279755875 is an equidigital number, since it uses as much as digits as its factorization.

1279755875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10238062 (or 10238052 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 56.

The square root of 1279755875 is about 35773.6757267128. The cubic root of 1279755875 is about 1085.6980154574.

The spelling of 1279755875 in words is "one billion, two hundred seventy-nine million, seven hundred fifty-five thousand, eight hundred seventy-five".