78181114524018 has 16 divisors (see below), whose sum is σ = 170576977143456. Its totient is φ = 23691246825440.

The previous prime is 78181114524011. The next prime is 78181114524053. The reversal of 78181114524018 is 81042541118187.

It is a super-2 number, since 2×78181114524018² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78181114524011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 592281170571 + ... + 592281170702.

It is an arithmetic number, because the mean of its divisors is an integer number (10661061071466).

Almost surely, 2^{78181114524018} is an apocalyptic number.

78181114524018 is an abundant number, since it is smaller than the sum of its proper divisors (92395862619438).

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

78181114524018 is a wasteful number, since it uses less digits than its factorization.

78181114524018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184562341289.

The product of its (nonzero) digits is 573440, while the sum is 51.

The spelling of 78181114524018 in words is "seventy-eight trillion, one hundred eighty-one billion, one hundred fourteen million, five hundred twenty-four thousand, eighteen".