5172271965 has 24 divisors (see below), whose sum is σ = 10246025088. Its totient is φ = 2364467040.

The previous prime is 5172271957. The next prime is 5172271967. The reversal of 5172271965 is 5691722715.

5172271965 is a `hidden beast` number, since 517 + 2 + 2 + 71 + 9 + 65 = 666.

It is not a de Polignac number, because 5172271965 - 2³ = 5172271957 is a prime.

It is a super-3 number, since 3×5172271965³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5172271965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5172271967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8209641 + ... + 8210270.

It is an arithmetic number, because the mean of its divisors is an integer number (426917712).

Almost surely, 2^5172271965 is an apocalyptic number.

It is an amenable number.

5172271965 is a deficient number, since it is larger than the sum of its proper divisors (5073753123).

5172271965 is a wasteful number, since it uses less digits than its factorization.

5172271965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16419929 (or 16419926 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 5172271965 is about 71918.5091961729. The cubic root of 5172271965 is about 1729.3933481647.

The spelling of 5172271965 in words is "five billion, one hundred seventy-two million, two hundred seventy-one thousand, nine hundred sixty-five".