7427842818 has 32 divisors (see below), whose sum is σ = 16601481792. Its totient is φ = 2195961600.

The previous prime is 7427842813. The next prime is 7427842871. The reversal of 7427842818 is 8182487247.

It is a happy number.

It is a super-2 number, since 2×7427842818² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7427842813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1369771 + ... + 1375182.

It is an arithmetic number, because the mean of its divisors is an integer number (518796306).

Almost surely, 2^7427842818 is an apocalyptic number.

7427842818 is an abundant number, since it is smaller than the sum of its proper divisors (9173638974).

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

7427842818 is a wasteful number, since it uses less digits than its factorization.

7427842818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745010.

The product of its digits is 1605632, while the sum is 51.

The square root of 7427842818 is about 86184.9338225655. The cubic root of 7427842818 is about 1951.1361179543.

The spelling of 7427842818 in words is "seven billion, four hundred twenty-seven million, eight hundred forty-two thousand, eight hundred eighteen".