120809782608 has 20 divisors (see below), whose sum is σ = 312091938528. Its totient is φ = 40269927520.

The previous prime is 120809782607. The next prime is 120809782627. The reversal of 120809782608 is 806287908021.

It is a happy number.

120809782608 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120809782601) 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 3 ways as a sum of consecutive naturals, for example, 1258435188 + ... + 1258435283.

Almost surely, 2^120809782608 is an apocalyptic number.

It is an amenable number.

120809782608 is an abundant number, since it is smaller than the sum of its proper divisors (191282155920).

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

120809782608 is a wasteful number, since it uses less digits than its factorization.

120809782608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516870482 (or 2516870476 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 120809782608 in words is "one hundred twenty billion, eight hundred nine million, seven hundred eighty-two thousand, six hundred eight".