774353664 has 324 divisors, whose sum is σ = 2741433240. Its totient is φ = 209599488.

The previous prime is 774353663. The next prime is 774353677. The reversal of 774353664 is 466353477.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

774353664 is a `hidden beast` number, since 77 + 43 + 536 + 6 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (774353663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40755447 + ... + 40755465.

Almost surely, 2^774353664 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 774353664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370716620).

774353664 is an abundant number, since it is smaller than the sum of its proper divisors (1967079576).

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

774353664 is an equidigital number, since it uses as much as digits as its factorization.

774353664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 31 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The square root of 774353664 is about 27827.2108555637. The cubic root of 774353664 is about 918.2898539330.

The spelling of 774353664 in words is "seven hundred seventy-four million, three hundred fifty-three thousand, six hundred sixty-four".