3187820287813 has 8 divisors (see below), whose sum is σ = 3651447169728. Its totient is φ = 2726249401824.

The previous prime is 3187820287789. The next prime is 3187820287843.

3187820287813 is nontrivially palindromic in base 10.

3187820287813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3187820287813 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 (3187820287843) 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, 513995656 + ... + 514001857.

It is an arithmetic number, because the mean of its divisors is an integer number (456430896216).

Almost surely, 2^{3187820287813} is an apocalyptic number.

It is an amenable number.

3187820287813 is a deficient number, since it is larger than the sum of its proper divisors (463626881915).

3187820287813 is a wasteful number, since it uses less digits than its factorization.

3187820287813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027997963.

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 3187820287813 in words is "three trillion, one hundred eighty-seven billion, eight hundred twenty million, two hundred eighty-seven thousand, eight hundred thirteen".