774401448065 has 48 divisors (see below), whose sum is σ = 1083688953984. Its totient is φ = 529699564800.

The previous prime is 774401448053. The next prime is 774401448089. The reversal of 774401448065 is 560844104477.

It is a de Polignac number, because none of the positive numbers 2^k-774401448065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307179005 + ... + 307181525.

It is an arithmetic number, because the mean of its divisors is an integer number (22576853208).

Almost surely, 2^774401448065 is an apocalyptic number.

It is an amenable number.

774401448065 is a deficient number, since it is larger than the sum of its proper divisors (309287505919).

774401448065 is a wasteful number, since it uses less digits than its factorization.

774401448065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5151 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 774401448065 in words is "seven hundred seventy-four billion, four hundred one million, four hundred forty-eight thousand, sixty-five".