42623170238618 has 8 divisors (see below), whose sum is σ = 67695623320212. Its totient is φ = 20057962465216.

The previous prime is 42623170238603. The next prime is 42623170238633. The reversal of 42623170238618 is 81683207132624.

It is an interprime number because it is at equal distance from previous prime (42623170238603) and next prime (42623170238633).

It can be written as a sum of positive squares in 2 ways, for example, as 39551609046049 + 3071561192569 = 6289007^2 + 1752587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42623170238618² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42623170238618.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626811327005 + ... + 626811327072.

Almost surely, 2^{42623170238618} is an apocalyptic number.

42623170238618 is a deficient number, since it is larger than the sum of its proper divisors (25072453081594).

42623170238618 is a wasteful number, since it uses less digits than its factorization.

42623170238618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253622654096.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 42623170238618 in words is "forty-two trillion, six hundred twenty-three billion, one hundred seventy million, two hundred thirty-eight thousand, six hundred eighteen".