78218582513118 has 16 divisors (see below), whose sum is σ = 160252705637136. Its totient is φ = 25436937402560.

The previous prime is 78218582513107. The next prime is 78218582513131. The reversal of 78218582513118 is 81131528581287.

It is a happy number.

It is a super-2 number, since 2×78218582513118² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158980858521 + ... + 158980859012.

It is an arithmetic number, because the mean of its divisors is an integer number (10015794102321).

Almost surely, 2^{78218582513118} is an apocalyptic number.

78218582513118 is an abundant number, since it is smaller than the sum of its proper divisors (82034123124018).

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

78218582513118 is a wasteful number, since it uses less digits than its factorization.

78218582513118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317961717579.

The product of its digits is 8601600, while the sum is 60.

The spelling of 78218582513118 in words is "seventy-eight trillion, two hundred eighteen billion, five hundred eighty-two million, five hundred thirteen thousand, one hundred eighteen".