78111004806 has 32 divisors (see below), whose sum is σ = 178271366880. Its totient is φ = 25333298208.

The previous prime is 78111004801. The next prime is 78111004919. The reversal of 78111004806 is 60840011187.

78111004806 is a `hidden beast` number, since 78 + 1 + 1 + 100 + 480 + 6 = 666.

It is a super-3 number, since 3×78111004806³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78111004801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19545301 + ... + 19549296.

It is an arithmetic number, because the mean of its divisors is an integer number (5570980215).

Almost surely, 2^78111004806 is an apocalyptic number.

78111004806 is an abundant number, since it is smaller than the sum of its proper divisors (100160362074).

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

78111004806 is a wasteful number, since it uses less digits than its factorization.

78111004806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39094645 (or 39094639 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 78111004806 in words is "seventy-eight billion, one hundred eleven million, four thousand, eight hundred six".