120689044380 has 144 divisors (see below), whose sum is σ = 378273552384. Its totient is φ = 31114730880.

The previous prime is 120689044379. The next prime is 120689044429. The reversal of 120689044380 is 83440986021.

It is a happy number.

120689044380 is a `hidden beast` number, since 1 + 206 + 8 + 9 + 0 + 4 + 438 + 0 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 5921367 + ... + 5941713.

Almost surely, 2^120689044380 is an apocalyptic number.

120689044380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120689044380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189136776192).

120689044380 is an abundant number, since it is smaller than the sum of its proper divisors (257584508004).

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

120689044380 is a wasteful number, since it uses less digits than its factorization.

120689044380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21456 (or 21451 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 120689044380 in words is "one hundred twenty billion, six hundred eighty-nine million, forty-four thousand, three hundred eighty".