120027261905509 has 8 divisors (see below), whose sum is σ = 138826712566080. Its totient is φ = 101640985984896.

The previous prime is 120027261905489. The next prime is 120027261905519. The reversal of 120027261905509 is 905509162720021.

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 120027261905509 - 2¹⁹ = 120027261381221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120027261905519) 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, 103293684364 + ... + 103293685525.

It is an arithmetic number, because the mean of its divisors is an integer number (17353339070760).

Almost surely, 2^{120027261905509} is an apocalyptic number.

It is an amenable number.

120027261905509 is a deficient number, since it is larger than the sum of its proper divisors (18799450660571).

120027261905509 is an equidigital number, since it uses as much as digits as its factorization.

120027261905509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206587369979.

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 120027261905509 in words is "one hundred twenty trillion, twenty-seven billion, two hundred sixty-one million, nine hundred five thousand, five hundred nine".