1279608768 has 126 divisors (see below), whose sum is σ = 3896716616. Its totient is φ = 401393664.

The previous prime is 1279608727. The next prime is 1279608769. The reversal of 1279608768 is 8678069721.

1279608768 is a `hidden beast` number, since 1 + 27 + 9 + 608 + 7 + 6 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279608769) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 162621 + ... + 170307.

Almost surely, 2^1279608768 is an apocalyptic number.

1279608768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1279608768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948358308).

1279608768 is an abundant number, since it is smaller than the sum of its proper divisors (2617107848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279608768 is a wasteful number, since it uses less digits than its factorization.

1279608768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7739 (or 7709 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 1279608768 is about 35771.6195887187. The cubic root of 1279608768 is about 1085.6564137996.

The spelling of 1279608768 in words is "one billion, two hundred seventy-nine million, six hundred eight thousand, seven hundred sixty-eight".