5171114221765 has 4 divisors (see below), whose sum is σ = 6205337066124. Its totient is φ = 4136891377408.

The previous prime is 5171114221727. The next prime is 5171114221807. The reversal of 5171114221765 is 5671224111715.

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 3570894281761 + 1600219940004 = 1889681^2 + 1264998^2 .

It is a cyclic number.

It is not a de Polignac number, because 5171114221765 - 2⁹ = 5171114221253 is a prime.

It is a super-3 number, since 3×5171114221765³ (a number of 39 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517111422172 + ... + 517111422181.

It is an arithmetic number, because the mean of its divisors is an integer number (1551334266531).

Almost surely, 2^{5171114221765} is an apocalyptic number.

It is an amenable number.

5171114221765 is a deficient number, since it is larger than the sum of its proper divisors (1034222844359).

5171114221765 is a wasteful number, since it uses less digits than its factorization.

5171114221765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034222844358.

The product of its digits is 117600, while the sum is 43.

The spelling of 5171114221765 in words is "five trillion, one hundred seventy-one billion, one hundred fourteen million, two hundred twenty-one thousand, seven hundred sixty-five".