774401448064 has 32 divisors (see below), whose sum is σ = 1542908790540. Its totient is φ = 387161594880.

The previous prime is 774401448053. The next prime is 774401448089. The reversal of 774401448064 is 460844104477.

It can be written as a sum of positive squares in 2 ways, for example, as 759616833600 + 14784614464 = 871560^2 + 121592^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 774401447999 and 774401448017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 987142 + ... + 1588474.

Almost surely, 2^774401448064 is an apocalyptic number.

It is an amenable number.

774401448064 is a deficient number, since it is larger than the sum of its proper divisors (768507342476).

774401448064 is a wasteful number, since it uses less digits than its factorization.

774401448064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611408 (or 611396 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 49.

The spelling of 774401448064 in words is "seven hundred seventy-four billion, four hundred one million, four hundred forty-eight thousand, sixty-four".