3813751225813 has 8 divisors (see below), whose sum is σ = 4014618557600. Its totient is φ = 3612898252368.

The previous prime is 3813751225799. The next prime is 3813751225831. The reversal of 3813751225813 is 3185221573183.

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-3813751225813 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 (3813751225853) 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, 3042231 + ... + 4108852.

It is an arithmetic number, because the mean of its divisors is an integer number (501827319700).

Almost surely, 2^{3813751225813} is an apocalyptic number.

It is an amenable number.

3813751225813 is a deficient number, since it is larger than the sum of its proper divisors (200867331787).

3813751225813 is a wasteful number, since it uses less digits than its factorization.

3813751225813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7179171.

The product of its digits is 1209600, while the sum is 49.

Adding to 3813751225813 its reverse (3185221573183), we get a palindrome (6998972798996).

The spelling of 3813751225813 in words is "three trillion, eight hundred thirteen billion, seven hundred fifty-one million, two hundred twenty-five thousand, eight hundred thirteen".