1648579916797 has 8 divisors (see below), whose sum is σ = 1832383853280. Its totient is φ = 1470431486160.

The previous prime is 1648579916719. The next prime is 1648579916803. The reversal of 1648579916797 is 7976199758461.

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-1648579916797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648579916717) 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, 1413875847 + ... + 1413877012.

It is an arithmetic number, because the mean of its divisors is an integer number (229047981660).

Almost surely, 2^{1648579916797} is an apocalyptic number.

It is an amenable number.

1648579916797 is a deficient number, since it is larger than the sum of its proper divisors (183803936483).

1648579916797 is a wasteful number, since it uses less digits than its factorization.

1648579916797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827752923.

The product of its digits is 1440270720, while the sum is 79.

The spelling of 1648579916797 in words is "one trillion, six hundred forty-eight billion, five hundred seventy-nine million, nine hundred sixteen thousand, seven hundred ninety-seven".