120976665489 has 27 divisors (see below), whose sum is σ = 175803989179. Its totient is φ = 80164862160.

The previous prime is 120976665451. The next prime is 120976665541. The reversal of 120976665489 is 984566679021.

The square root of 120976665489 is 347817.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7959673089 + 113016992400 = 89217^2 + 336180^2 .

It is not a de Polignac number, because 120976665489 - 2¹¹ = 120976663441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120976665409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 280688104 + ... + 280688534.

Almost surely, 2^120976665489 is an apocalyptic number.

120976665489 is the 347817-th square number.

120976665489 is the 173909-th centered octagonal number.

It is an amenable number.

120976665489 is a deficient number, since it is larger than the sum of its proper divisors (54827323690).

120976665489 is an frugal number, since it uses more digits than its factorization.

120976665489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 120976665489 in words is "one hundred twenty billion, nine hundred seventy-six million, six hundred sixty-five thousand, four hundred eighty-nine".