120946781809 has 8 divisors (see below), whose sum is σ = 146355769728. Its totient is φ = 97570512960.

The previous prime is 120946781797. The next prime is 120946781849. The reversal of 120946781809 is 908187649021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120946781809 - 2²³ = 120938393201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120946781809.

It is not an unprimeable number, because it can be changed into a prime (120946781849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508179637 + ... + 508179874.

It is an arithmetic number, because the mean of its divisors is an integer number (18294471216).

Almost surely, 2^120946781809 is an apocalyptic number.

It is an amenable number.

120946781809 is a deficient number, since it is larger than the sum of its proper divisors (25408987919).

120946781809 is a wasteful number, since it uses less digits than its factorization.

120946781809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016359535.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 120946781809 in words is "one hundred twenty billion, nine hundred forty-six million, seven hundred eighty-one thousand, eight hundred nine".