775263664 has 40 divisors (see below), whose sum is σ = 1763060768. Its totient is φ = 323274240.

The previous prime is 775263661. The next prime is 775263667. The reversal of 775263664 is 466362577.

775263664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (775263661) and next prime (775263667).

It is not an unprimeable number, because it can be changed into a prime (775263661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89397 + ... + 97684.

Almost surely, 2^775263664 is an apocalyptic number.

775263664 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

775263664 is an abundant number, since it is smaller than the sum of its proper divisors (987797104).

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

775263664 is a wasteful number, since it uses less digits than its factorization.

775263664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187133 (or 187127 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 46.

The square root of 775263664 is about 27843.5569566821. The cubic root of 775263664 is about 918.6494297863.

The spelling of 775263664 in words is "seven hundred seventy-five million, two hundred sixty-three thousand, six hundred sixty-four".