7113994578 has 12 divisors (see below), whose sum is σ = 15413654958. Its totient is φ = 2371331520.

The previous prime is 7113994571. The next prime is 7113994609. The reversal of 7113994578 is 8754993117.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7086777489 + 27217089 = 84183^2 + 5217^2 .

It is not an unprimeable number, because it can be changed into a prime (7113994571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197610943 + ... + 197610978.

Almost surely, 2^7113994578 is an apocalyptic number.

7113994578 is an abundant number, since it is smaller than the sum of its proper divisors (8299660380).

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

7113994578 is a wasteful number, since it uses less digits than its factorization.

7113994578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395221929 (or 395221926 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 7113994578 is about 84344.4993938550. The cubic root of 7113994578 is about 1923.2593093835.

The spelling of 7113994578 in words is "seven billion, one hundred thirteen million, nine hundred ninety-four thousand, five hundred seventy-eight".