7813437996 has 96 divisors (see below), whose sum is σ = 22483138048. Its totient is φ = 2056596480.

The previous prime is 7813437991. The next prime is 7813438007. The reversal of 7813437996 is 6997343187.

It is a super-2 number, since 2×7813437996² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7813437991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 564276 + ... + 577956.

Almost surely, 2^7813437996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7813437996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11241569024).

7813437996 is an abundant number, since it is smaller than the sum of its proper divisors (14669700052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7813437996 is a wasteful number, since it uses less digits than its factorization.

7813437996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14231 (or 14229 counting only the distinct ones).

The product of its digits is 6858432, while the sum is 57.

The square root of 7813437996 is about 88393.6535957192. The cubic root of 7813437996 is about 1984.3307238269.

The spelling of 7813437996 in words is "seven billion, eight hundred thirteen million, four hundred thirty-seven thousand, nine hundred ninety-six".