3172913645357 has 4 divisors (see below), whose sum is σ = 3173393016480. Its totient is φ = 3172434274236.

The previous prime is 3172913645333. The next prime is 3172913645401. The reversal of 3172913645357 is 7535463192713.

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 not a de Polignac number, because 3172913645357 - 2⁸ = 3172913645101 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 (3172913645257) 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 3 ways as a sum of consecutive naturals, for example, 239675633 + ... + 239688870.

It is an arithmetic number, because the mean of its divisors is an integer number (793348254120).

Almost surely, 2^{3172913645357} is an apocalyptic number.

It is an amenable number.

3172913645357 is a deficient number, since it is larger than the sum of its proper divisors (479371123).

3172913645357 is an equidigital number, since it uses as much as digits as its factorization.

3172913645357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479371122.

The product of its digits is 14288400, while the sum is 56.

The spelling of 3172913645357 in words is "three trillion, one hundred seventy-two billion, nine hundred thirteen million, six hundred forty-five thousand, three hundred fifty-seven".