180822741978 has 64 divisors (see below), whose sum is σ = 377923708800. Its totient is φ = 57633945600.

The previous prime is 180822741971. The next prime is 180822741991. The reversal of 180822741978 is 879147228081.

It is a happy number.

180822741978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180822741971) 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 31 ways as a sum of consecutive naturals, for example, 2280178 + ... + 2358146.

It is an arithmetic number, because the mean of its divisors is an integer number (5905057950).

Almost surely, 2^180822741978 is an apocalyptic number.

180822741978 is an abundant number, since it is smaller than the sum of its proper divisors (197100966822).

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

180822741978 is a wasteful number, since it uses less digits than its factorization.

180822741978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78207.

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 180822741978 in words is "one hundred eighty billion, eight hundred twenty-two million, seven hundred forty-one thousand, nine hundred seventy-eight".