120346840647 has 36 divisors (see below), whose sum is σ = 192797810712. Its totient is φ = 71741563200.

The previous prime is 120346840643. The next prime is 120346840673. The reversal of 120346840647 is 746048643021.

120346840647 is a `hidden beast` number, since 120 + 3 + 468 + 4 + 0 + 64 + 7 = 666.

It is not a de Polignac number, because 120346840647 - 2² = 120346840643 is a prime.

It is a super-3 number, since 3×120346840647³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120346840643) 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 35 ways as a sum of consecutive naturals, for example, 205033 + ... + 531725.

It is an arithmetic number, because the mean of its divisors is an integer number (5355494742).

Almost surely, 2^120346840647 is an apocalyptic number.

120346840647 is a deficient number, since it is larger than the sum of its proper divisors (72450970065).

120346840647 is a wasteful number, since it uses less digits than its factorization.

120346840647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326832 (or 326768 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 120346840647 in words is "one hundred twenty billion, three hundred forty-six million, eight hundred forty thousand, six hundred forty-seven".