1461044670721 has 8 divisors (see below), whose sum is σ = 1486726475360. Its totient is φ = 1435579590528.

The previous prime is 1461044670707. The next prime is 1461044670731. The reversal of 1461044670721 is 1270764401641.

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 1461044670721 - 2⁹ = 1461044670209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461044670731) 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, 54167511 + ... + 54194476.

It is an arithmetic number, because the mean of its divisors is an integer number (185840809420).

Almost surely, 2^{1461044670721} is an apocalyptic number.

It is an amenable number.

1461044670721 is a deficient number, since it is larger than the sum of its proper divisors (25681804639).

1461044670721 is a wasteful number, since it uses less digits than its factorization.

1461044670721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108362223.

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 1461044670721 in words is "one trillion, four hundred sixty-one billion, forty-four million, six hundred seventy thousand, seven hundred twenty-one".