775245384463 has 4 divisors (see below), whose sum is σ = 845722237608. Its totient is φ = 704768531320.

The previous prime is 775245384443. The next prime is 775245384491. The reversal of 775245384463 is 364483542577.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 775245384463 - 2¹³ = 775245376271 is a prime.

It is a super-2 number, since 2×775245384463² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 775245384398 and 775245384407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775245384443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35238426556 + ... + 35238426577.

It is an arithmetic number, because the mean of its divisors is an integer number (211430559402).

Almost surely, 2^775245384463 is an apocalyptic number.

775245384463 is a deficient number, since it is larger than the sum of its proper divisors (70476853145).

775245384463 is a wasteful number, since it uses less digits than its factorization.

775245384463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70476853144.

The product of its digits is 67737600, while the sum is 58.

The spelling of 775245384463 in words is "seven hundred seventy-five billion, two hundred forty-five million, three hundred eighty-four thousand, four hundred sixty-three".