5171596861 has 4 divisors (see below), whose sum is σ = 5172868800. Its totient is φ = 5170324924.

The previous prime is 5171596853. The next prime is 5171596873. The reversal of 5171596861 is 1686951715.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1686951715 = 5 ⋅337390343.

It is a cyclic number.

It is not a de Polignac number, because 5171596861 - 2³ = 5171596853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171596891) 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, 629851 + ... + 638008.

It is an arithmetic number, because the mean of its divisors is an integer number (1293217200).

Almost surely, 2^5171596861 is an apocalyptic number.

It is an amenable number.

5171596861 is a deficient number, since it is larger than the sum of its proper divisors (1271939).

5171596861 is a wasteful number, since it uses less digits than its factorization.

5171596861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271938.

The product of its digits is 453600, while the sum is 49.

The square root of 5171596861 is about 71913.8155085655. The cubic root of 5171596861 is about 1729.3181026262.

The spelling of 5171596861 in words is "five billion, one hundred seventy-one million, five hundred ninety-six thousand, eight hundred sixty-one".