42673864618 has 32 divisors (see below), whose sum is σ = 82380054528. Its totient is φ = 16089850800.

The previous prime is 42673864613. The next prime is 42673864643. The reversal of 42673864618 is 81646837624.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42673864613) 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, 4464630 + ... + 4474177.

It is an arithmetic number, because the mean of its divisors is an integer number (2574376704).

Almost surely, 2^42673864618 is an apocalyptic number.

42673864618 is a deficient number, since it is larger than the sum of its proper divisors (39706189910).

42673864618 is a wasteful number, since it uses less digits than its factorization.

42673864618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8938858.

The product of its digits is 9289728, while the sum is 55.

The spelling of 42673864618 in words is "forty-two billion, six hundred seventy-three million, eight hundred sixty-four thousand, six hundred eighteen".