78330550810850 has 24 divisors (see below), whose sum is σ = 156902118702420. Its totient is φ = 28922049529920.

The previous prime is 78330550810843. The next prime is 78330550810903. The reversal of 78330550810850 is 5801805503387.

It can be written as a sum of positive squares in 6 ways, for example, as 19199110859041 + 59131439951809 = 4381679^2 + 7689697^2 .

It is a super-3 number, since 3×78330550810850³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78330550810792 and 78330550810801.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60254269205 + ... + 60254270504.

Almost surely, 2^{78330550810850} is an apocalyptic number.

78330550810850 is an abundant number, since it is smaller than the sum of its proper divisors (78571567891570).

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

78330550810850 is a wasteful number, since it uses less digits than its factorization.

78330550810850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120508539734 (or 120508539729 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 78330550810850 in words is "seventy-eight trillion, three hundred thirty billion, five hundred fifty million, eight hundred ten thousand, eight hundred fifty".