7381236813 has 8 divisors (see below), whose sum is σ = 9906826176. Its totient is φ = 4888236000.

The previous prime is 7381236791. The next prime is 7381236827. The reversal of 7381236813 is 3186321837.

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

It is not a de Polignac number, because 7381236813 - 2¹² = 7381232717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381236833) 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, 8146608 + ... + 8147513.

It is an arithmetic number, because the mean of its divisors is an integer number (1238353272).

Almost surely, 2^7381236813 is an apocalyptic number.

It is an amenable number.

7381236813 is a deficient number, since it is larger than the sum of its proper divisors (2525589363).

7381236813 is a wasteful number, since it uses less digits than its factorization.

7381236813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16294275.

The product of its digits is 145152, while the sum is 42.

The square root of 7381236813 is about 85914.1246419935. The cubic root of 7381236813 is about 1947.0467514307.

The spelling of 7381236813 in words is "seven billion, three hundred eighty-one million, two hundred thirty-six thousand, eight hundred thirteen".