78180758165828 has 48 divisors (see below), whose sum is σ = 137448464025600. Its totient is φ = 38910257184000.

The previous prime is 78180758165827. The next prime is 78180758165831. The reversal of 78180758165828 is 82856185708187.

It is a super-2 number, since 2×78180758165828² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78180758165827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560437978 + ... + 1560488078.

It is an arithmetic number, because the mean of its divisors is an integer number (2863509667200).

Almost surely, 2^{78180758165828} is an apocalyptic number.

It is an amenable number.

78180758165828 is a deficient number, since it is larger than the sum of its proper divisors (59267705859772).

78180758165828 is a wasteful number, since it uses less digits than its factorization.

78180758165828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52508 (or 52506 counting only the distinct ones).

The product of its (nonzero) digits is 481689600, while the sum is 74.

The spelling of 78180758165828 in words is "seventy-eight trillion, one hundred eighty billion, seven hundred fifty-eight million, one hundred sixty-five thousand, eight hundred twenty-eight".