775317375752 has 32 divisors (see below), whose sum is σ = 1539670145400. Its totient is φ = 364751622144.

The previous prime is 775317375739. The next prime is 775317375773. The reversal of 775317375752 is 257573713577.

It can be written as a sum of positive squares in 4 ways, for example, as 697936601476 + 77380774276 = 835426^2 + 278174^2 .

It is a super-2 number, since 2×775317375752² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 775317375691 and 775317375700.

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 7 ways as a sum of consecutive naturals, for example, 327773 + ... + 1287660.

Almost surely, 2^775317375752 is an apocalyptic number.

It is an amenable number.

775317375752 is a deficient number, since it is larger than the sum of its proper divisors (764352769648).

775317375752 is a wasteful number, since it uses less digits than its factorization.

775317375752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618985 (or 1618981 counting only the distinct ones).

The product of its digits is 37815750, while the sum is 59.

The spelling of 775317375752 in words is "seven hundred seventy-five billion, three hundred seventeen million, three hundred seventy-five thousand, seven hundred fifty-two".