120946781808 has 120 divisors (see below), whose sum is σ = 352033750640. Its totient is φ = 38732359680.

The previous prime is 120946781797. The next prime is 120946781849. The reversal of 120946781808 is 808187649021.

120946781808 is a `hidden beast` number, since 1 + 20 + 9 + 467 + 81 + 80 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217608 + ... + 537816.

Almost surely, 2^120946781808 is an apocalyptic number.

120946781808 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 120946781808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176016875320).

120946781808 is an abundant number, since it is smaller than the sum of its proper divisors (231086968832).

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

120946781808 is a wasteful number, since it uses less digits than its factorization.

120946781808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320327 (or 320318 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 120946781808 in words is "one hundred twenty billion, nine hundred forty-six million, seven hundred eighty-one thousand, eight hundred eight".