775245385450 has 24 divisors (see below), whose sum is σ = 1441986373260. Its totient is φ = 310091712000.

The previous prime is 775245385423. The next prime is 775245385451. The reversal of 775245385450 is 54583542577.

It can be written as a sum of positive squares in 6 ways, for example, as 47900241 + 775197485209 = 6921^2 + 880453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 775245385391 and 775245385400.

It is not an unprimeable number, because it can be changed into a prime (775245385451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2813850 + ... + 3077050.

Almost surely, 2^775245385450 is an apocalyptic number.

775245385450 is a deficient number, since it is larger than the sum of its proper divisors (666740987810).

775245385450 is a wasteful number, since it uses less digits than its factorization.

775245385450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322122 (or 322117 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 55.

The spelling of 775245385450 in words is "seven hundred seventy-five billion, two hundred forty-five million, three hundred eighty-five thousand, four hundred fifty".