774166672 has 40 divisors (see below), whose sum is σ = 1591418232. Its totient is φ = 363571200.

The previous prime is 774166669. The next prime is 774166681. The reversal of 774166672 is 276661477.

It can be written as a sum of positive squares in 4 ways, for example, as 258695056 + 515471616 = 16084^2 + 22704^2 .

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, 144522 + ... + 149782.

Almost surely, 2^774166672 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 774166672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (795709116).

774166672 is an abundant number, since it is smaller than the sum of its proper divisors (817251560).

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

774166672 is a wasteful number, since it uses less digits than its factorization.

774166672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827 (or 5821 counting only the distinct ones).

The product of its digits is 592704, while the sum is 46.

The square root of 774166672 is about 27823.8507759081. The cubic root of 774166672 is about 918.2159313452.

The spelling of 774166672 in words is "seven hundred seventy-four million, one hundred sixty-six thousand, six hundred seventy-two".