3191673993 has 16 divisors (see below), whose sum is σ = 4511093760. Its totient is φ = 2000307456.

The previous prime is 3191673973. The next prime is 3191673997. The reversal of 3191673993 is 3993761913.

3191673993 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3191673993 - 2⁹ = 3191673481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3191673997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9048 + ... + 80406.

It is an arithmetic number, because the mean of its divisors is an integer number (281943360).

Almost surely, 2^3191673993 is an apocalyptic number.

It is an amenable number.

3191673993 is a deficient number, since it is larger than the sum of its proper divisors (1319419767).

3191673993 is a wasteful number, since it uses less digits than its factorization.

3191673993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72256.

The product of its digits is 826686, while the sum is 51.

The square root of 3191673993 is about 56494.9023629566. The cubic root of 3191673993 is about 1472.3334364036. Note that the first 3 decimals are identical.

The spelling of 3191673993 in words is "three billion, one hundred ninety-one million, six hundred seventy-three thousand, nine hundred ninety-three".