40134806061618 has 16 divisors (see below), whose sum is σ = 82858954450176. Its totient is φ = 12946711632720.

The previous prime is 40134806061613. The next prime is 40134806061659. The reversal of 40134806061618 is 81616060843104.

It is a happy number.

It is a super-2 number, since 2×40134806061618² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40134806061613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107889263421 + ... + 107889263792.

It is an arithmetic number, because the mean of its divisors is an integer number (5178684653136).

Almost surely, 2^{40134806061618} is an apocalyptic number.

40134806061618 is an abundant number, since it is smaller than the sum of its proper divisors (42724148388558).

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

40134806061618 is a wasteful number, since it uses less digits than its factorization.

40134806061618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215778527249.

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 40134806061618 in words is "forty trillion, one hundred thirty-four billion, eight hundred six million, sixty-one thousand, six hundred eighteen".