142238287618 has 16 divisors (see below), whose sum is σ = 244621113984. Its totient is φ = 60763253760.

The previous prime is 142238287561. The next prime is 142238287621. The reversal of 142238287618 is 816782832241.

It is a super-2 number, since 2×142238287618² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16329855 + ... + 16338562.

It is an arithmetic number, because the mean of its divisors is an integer number (15288819624).

Almost surely, 2^142238287618 is an apocalyptic number.

142238287618 is a deficient number, since it is larger than the sum of its proper divisors (102382826366).

142238287618 is a wasteful number, since it uses less digits than its factorization.

142238287618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32668737.

The product of its digits is 2064384, while the sum is 52.

The spelling of 142238287618 in words is "one hundred forty-two billion, two hundred thirty-eight million, two hundred eighty-seven thousand, six hundred eighteen".