68495043618 has 24 divisors (see below), whose sum is σ = 148603568256. Its totient is φ = 22801275000.

The previous prime is 68495043583. The next prime is 68495043629. The reversal of 68495043618 is 81634059486.

68495043618 is a `hidden beast` number, since 68 + 49 + 504 + 36 + 1 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2519958 + ... + 2546993.

It is an arithmetic number, because the mean of its divisors is an integer number (6191815344).

Almost surely, 2^68495043618 is an apocalyptic number.

68495043618 is an abundant number, since it is smaller than the sum of its proper divisors (80108524638).

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

68495043618 is a wasteful number, since it uses less digits than its factorization.

68495043618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067710 (or 5067707 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 68495043618 in words is "sixty-eight billion, four hundred ninety-five million, forty-three thousand, six hundred eighteen".