120489836544 has 612 divisors, whose sum is σ = 442883666160. Its totient is φ = 31213486080.

The previous prime is 120489836501. The next prime is 120489836557. The reversal of 120489836544 is 445638984021.

120489836544 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 8 + 98 + 3 + 6 + 544 = 666.

It is a super-3 number, since 3×120489836544³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 317914947 + ... + 317915325.

Almost surely, 2^120489836544 is an apocalyptic number.

120489836544 is a gapful number since it is divisible by the number (14) 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 120489836544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221441833080).

120489836544 is an abundant number, since it is smaller than the sum of its proper divisors (322393829616).

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

120489836544 is an equidigital number, since it uses as much as digits as its factorization.

120489836544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 120489836544 in words is "one hundred twenty billion, four hundred eighty-nine million, eight hundred thirty-six thousand, five hundred forty-four".