78961105180 has 12 divisors (see below), whose sum is σ = 165818320920. Its totient is φ = 31584442064.

The previous prime is 78961105159. The next prime is 78961105187. The reversal of 78961105180 is 8150116987.

It is a super-3 number, since 3×78961105180³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 78961105180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78961105187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1974027610 + ... + 1974027649.

It is an arithmetic number, because the mean of its divisors is an integer number (13818193410).

Almost surely, 2^78961105180 is an apocalyptic number.

It is an amenable number.

78961105180 is an abundant number, since it is smaller than the sum of its proper divisors (86857215740).

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

78961105180 is a wasteful number, since it uses less digits than its factorization.

78961105180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948055268 (or 3948055266 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 46.

The spelling of 78961105180 in words is "seventy-eight billion, nine hundred sixty-one million, one hundred five thousand, one hundred eighty".