7945294618 has 16 divisors (see below), whose sum is σ = 12128567616. Its totient is φ = 3902834880.

The previous prime is 7945294613. The next prime is 7945294661. The reversal of 7945294618 is 8164925497.

It is not an unprimeable number, because it can be changed into a prime (7945294613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58671 + ... + 139042.

It is an arithmetic number, because the mean of its divisors is an integer number (758035476).

Almost surely, 2^7945294618 is an apocalyptic number.

7945294618 is a deficient number, since it is larger than the sum of its proper divisors (4183272998).

7945294618 is a wasteful number, since it uses less digits than its factorization.

7945294618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198069.

The product of its digits is 4354560, while the sum is 55.

The square root of 7945294618 is about 89136.3821231264. The cubic root of 7945294618 is about 1995.4307872637.

The spelling of 7945294618 in words is "seven billion, nine hundred forty-five million, two hundred ninety-four thousand, six hundred eighteen".