5643776773465 has 4 divisors (see below), whose sum is σ = 6772532128164. Its totient is φ = 4515021418768.

The previous prime is 5643776773441. The next prime is 5643776773483.

It is a happy number.

5643776773465 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2479960394521 + 3163816378944 = 1574789^2 + 1778712^2 .

It is a cyclic number.

It is not a de Polignac number, because 5643776773465 - 2⁷ = 5643776773337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5643776773394 and 5643776773403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564377677342 + ... + 564377677351.

It is an arithmetic number, because the mean of its divisors is an integer number (1693133032041).

Almost surely, 2^{5643776773465} is an apocalyptic number.

It is an amenable number.

5643776773465 is a deficient number, since it is larger than the sum of its proper divisors (1128755354699).

5643776773465 is a wasteful number, since it uses less digits than its factorization.

5643776773465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128755354698.

The product of its digits is 1867017600, while the sum is 70.

The spelling of 5643776773465 in words is "five trillion, six hundred forty-three billion, seven hundred seventy-six million, seven hundred seventy-three thousand, four hundred sixty-five".