779744268 has 144 divisors (see below), whose sum is σ = 2142897120. Its totient is φ = 238298112.

The previous prime is 779744263. The next prime is 779744279. The reversal of 779744268 is 862447977.

It is a super-2 number, since 2×779744268² = 1216002246957711648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (779744263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4966446 + ... + 4966602.

It is an arithmetic number, because the mean of its divisors is an integer number (14881230).

Almost surely, 2^779744268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 779744268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071448560).

779744268 is an abundant number, since it is smaller than the sum of its proper divisors (1363152852).

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

779744268 is a wasteful number, since it uses less digits than its factorization.

779744268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 371 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 779744268 is about 27923.9013749870. The cubic root of 779744268 is about 920.4157966133.

The spelling of 779744268 in words is "seven hundred seventy-nine million, seven hundred forty-four thousand, two hundred sixty-eight".