7842818506 has 16 divisors (see below), whose sum is σ = 11845299816. Its totient is φ = 3894411456.

The previous prime is 7842818497. The next prime is 7842818521. The reversal of 7842818506 is 6058182487.

It can be written as a sum of positive squares in 4 ways, for example, as 2469195481 + 5373623025 = 49691^2 + 73305^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7842818506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734800 + ... + 745396.

Almost surely, 2^7842818506 is an apocalyptic number.

7842818506 is a deficient number, since it is larger than the sum of its proper divisors (4002481310).

7842818506 is a wasteful number, since it uses less digits than its factorization.

7842818506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13113.

The product of its (nonzero) digits is 860160, while the sum is 49.

The square root of 7842818506 is about 88559.6889448015. The cubic root of 7842818506 is about 1986.8148085495.

The spelling of 7842818506 in words is "seven billion, eight hundred forty-two million, eight hundred eighteen thousand, five hundred six".