120749104728 has 336 divisors, whose sum is σ = 401897586480. Its totient is φ = 33300626688.

The previous prime is 120749104711. The next prime is 120749104739. The reversal of 120749104728 is 827401947021.

120749104728 is a `hidden beast` number, since 1 + 20 + 74 + 91 + 0 + 472 + 8 = 666.

It is a super-2 number, since 2×120749104728² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 34331226 + ... + 34334742.

Almost surely, 2^120749104728 is an apocalyptic number.

120749104728 is a gapful number since it is divisible by the number (18) 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 120749104728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200948793240).

120749104728 is an abundant number, since it is smaller than the sum of its proper divisors (281148481752).

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

120749104728 is an equidigital number, since it uses as much as digits as its factorization.

120749104728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3558 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 120749104728 in words is "one hundred twenty billion, seven hundred forty-nine million, one hundred four thousand, seven hundred twenty-eight".