774089568 has 192 divisors, whose sum is σ = 2600640000. Its totient is φ = 219428352.

The previous prime is 774089567. The next prime is 774089579. The reversal of 774089568 is 865980477.

774089568 is a `hidden beast` number, since 7 + 74 + 0 + 8 + 9 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774089567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900723 + ... + 901581.

It is an arithmetic number, because the mean of its divisors is an integer number (13545000).

Almost surely, 2^774089568 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 774089568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300320000).

774089568 is an abundant number, since it is smaller than the sum of its proper divisors (1826550432).

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

774089568 is a wasteful number, since it uses less digits than its factorization.

774089568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 774089568 is about 27822.4651675584. The cubic root of 774089568 is about 918.1854467505.

The spelling of 774089568 in words is "seven hundred seventy-four million, eighty-nine thousand, five hundred sixty-eight".