3181680087 has 8 divisors (see below), whose sum is σ = 4332500736. Its totient is φ = 2075989752.

The previous prime is 3181680059. The next prime is 3181680097. The reversal of 3181680087 is 7800861813.

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

It is not a de Polignac number, because 3181680087 - 2⁷ = 3181679959 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3181680097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11282413 + ... + 11282694.

It is an arithmetic number, because the mean of its divisors is an integer number (541562592).

Almost surely, 2^3181680087 is an apocalyptic number.

3181680087 is a deficient number, since it is larger than the sum of its proper divisors (1150820649).

3181680087 is a wasteful number, since it uses less digits than its factorization.

3181680087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22565157.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 3181680087 is about 56406.3833887619. The cubic root of 3181680087 is about 1470.7950851759.

The spelling of 3181680087 in words is "three billion, one hundred eighty-one million, six hundred eighty thousand, eighty-seven".