774686945 has 16 divisors (see below), whose sum is σ = 955688448. Its totient is φ = 602406720.

The previous prime is 774686921. The next prime is 774686953. The reversal of 774686945 is 549686477.

It is not a de Polignac number, because 774686945 - 2⁶ = 774686881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 337592 + ... + 339878.

It is an arithmetic number, because the mean of its divisors is an integer number (59730528).

Almost surely, 2^774686945 is an apocalyptic number.

It is an amenable number.

774686945 is a deficient number, since it is larger than the sum of its proper divisors (181001503).

774686945 is a wasteful number, since it uses less digits than its factorization.

774686945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160.

The product of its digits is 10160640, while the sum is 56.

The square root of 774686945 is about 27833.1986124484. The cubic root of 774686945 is about 918.4215786982.

The spelling of 774686945 in words is "seven hundred seventy-four million, six hundred eighty-six thousand, nine hundred forty-five".