3172875044861 has 4 divisors (see below), whose sum is σ = 3310826133792. Its totient is φ = 3034923955932.

The previous prime is 3172875044837. The next prime is 3172875044887. The reversal of 3172875044861 is 1684405782713.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3172875044861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3172875044797 and 3172875044806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3172875044821) 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, 68975544431 + ... + 68975544476.

It is an arithmetic number, because the mean of its divisors is an integer number (827706533448).

Almost surely, 2^{3172875044861} is an apocalyptic number.

It is an amenable number.

3172875044861 is a deficient number, since it is larger than the sum of its proper divisors (137951088931).

3172875044861 is a wasteful number, since it uses less digits than its factorization.

3172875044861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137951088930.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 3172875044861 in words is "three trillion, one hundred seventy-two billion, eight hundred seventy-five million, forty-four thousand, eight hundred sixty-one".