120872845188 has 84 divisors (see below), whose sum is σ = 335801930940. Its totient is φ = 37920877056.

The previous prime is 120872845187. The next prime is 120872845199. The reversal of 120872845188 is 881548278021.

It is a happy number.

120872845188 is a `hidden beast` number, since 1 + 20 + 87 + 28 + 4 + 518 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 104521596804 + 16351248384 = 323298^2 + 127872^2 .

It is a super-2 number, since 2×120872845188² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (120872845187) 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 27 ways as a sum of consecutive naturals, for example, 1169593 + ... + 1268736.

It is an arithmetic number, because the mean of its divisors is an integer number (3997642035).

Almost surely, 2^120872845188 is an apocalyptic number.

120872845188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

120872845188 is an abundant number, since it is smaller than the sum of its proper divisors (214929085752).

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

120872845188 is a wasteful number, since it uses less digits than its factorization.

120872845188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438368 (or 2438351 counting only the distinct ones).

The product of its (nonzero) digits is 2293760, while the sum is 54.

The spelling of 120872845188 in words is "one hundred twenty billion, eight hundred seventy-two million, eight hundred forty-five thousand, one hundred eighty-eight".