6172712861 has 8 divisors (see below), whose sum is σ = 7056546240. Its totient is φ = 5289383808.

The previous prime is 6172712851. The next prime is 6172712867. The reversal of 6172712861 is 1682172716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6172712861 - 2¹⁸ = 6172450717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6172712867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99476 + ... + 149133.

It is an arithmetic number, because the mean of its divisors is an integer number (882068280).

Almost surely, 2^6172712861 is an apocalyptic number.

It is an amenable number.

6172712861 is a deficient number, since it is larger than the sum of its proper divisors (883833379).

6172712861 is a wasteful number, since it uses less digits than its factorization.

6172712861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252163.

The product of its digits is 56448, while the sum is 41.

The square root of 6172712861 is about 78566.6141627600. The cubic root of 6172712861 is about 1834.3914818835.

The spelling of 6172712861 in words is "six billion, one hundred seventy-two million, seven hundred twelve thousand, eight hundred sixty-one".