120765707137649 has 8 divisors (see below), whose sum is σ = 138018331859328. Its totient is φ = 103513177627200.

The previous prime is 120765707137619. The next prime is 120765707137681. The reversal of 120765707137649 is 946731707567021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120765707137649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120765707137619) 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, 21063797 + ... + 26176610.

It is an arithmetic number, because the mean of its divisors is an integer number (17252291482416).

Almost surely, 2^{120765707137649} is an apocalyptic number.

It is an amenable number.

120765707137649 is a deficient number, since it is larger than the sum of its proper divisors (17252624721679).

120765707137649 is an equidigital number, since it uses as much as digits as its factorization.

120765707137649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47605615.

The product of its (nonzero) digits is 93350880, while the sum is 65.

The spelling of 120765707137649 in words is "one hundred twenty trillion, seven hundred sixty-five billion, seven hundred seven million, one hundred thirty-seven thousand, six hundred forty-nine".