775216776 has 16 divisors (see below), whose sum is σ = 1938042000. Its totient is φ = 258405584.

The previous prime is 775216769. The next prime is 775216801. The reversal of 775216776 is 677612577.

775216776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×775216776² = 1201922099583668352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16150326 + ... + 16150373.

It is an arithmetic number, because the mean of its divisors is an integer number (121127625).

Almost surely, 2^775216776 is an apocalyptic number.

It is an amenable number.

775216776 is an abundant number, since it is smaller than the sum of its proper divisors (1162825224).

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

775216776 is a wasteful number, since it uses less digits than its factorization.

775216776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32300708 (or 32300704 counting only the distinct ones).

The product of its digits is 864360, while the sum is 48.

The square root of 775216776 is about 27842.7149538259. The cubic root of 775216776 is about 918.6309094192.

The spelling of 775216776 in words is "seven hundred seventy-five million, two hundred sixteen thousand, seven hundred seventy-six".