5321778663 has 16 divisors (see below), whose sum is σ = 7462526976. Its totient is φ = 3366871200.

The previous prime is 5321778607. The next prime is 5321778667. The reversal of 5321778663 is 3668771235.

It is not a de Polignac number, because 5321778663 - 2¹⁴ = 5321762279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5321778667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294888 + ... + 312413.

It is an arithmetic number, because the mean of its divisors is an integer number (466407936).

Almost surely, 2^5321778663 is an apocalyptic number.

5321778663 is a deficient number, since it is larger than the sum of its proper divisors (2140748313).

5321778663 is a wasteful number, since it uses less digits than its factorization.

5321778663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607454.

The product of its digits is 1270080, while the sum is 48.

The square root of 5321778663 is about 72950.5220200651. The cubic root of 5321778663 is about 1745.8982754012.

The spelling of 5321778663 in words is "five billion, three hundred twenty-one million, seven hundred seventy-eight thousand, six hundred sixty-three".