775308838322 has 6 divisors (see below), whose sum is σ = 1162965125343. Its totient is φ = 387653796542.

The previous prime is 775308838279. The next prime is 775308838333. The reversal of 775308838322 is 223838803577.

It can be written as a sum of positive squares in only one way, i.e., 387654419161 + 387654419161 = 622619^2 + 622619^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=622619.

It is a super-2 number, since 2×775308838322² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 933929 + ... + 1556547.

Almost surely, 2^775308838322 is an apocalyptic number.

775308838322 is a deficient number, since it is larger than the sum of its proper divisors (387656287021).

775308838322 is an frugal number, since it uses more digits than its factorization.

775308838322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245240 (or 622621 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 775308838322 in words is "seven hundred seventy-five billion, three hundred eight million, eight hundred thirty-eight thousand, three hundred twenty-two".