1648646507748 has 24 divisors (see below), whose sum is σ = 3846864464352. Its totient is φ = 549545605504.

The previous prime is 1648646507723. The next prime is 1648646507821. The reversal of 1648646507748 is 8477056468461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2641036 + ... + 3205052.

It is an arithmetic number, because the mean of its divisors is an integer number (160286019348).

Almost surely, 2^{1648646507748} is an apocalyptic number.

It is an amenable number.

1648646507748 is an abundant number, since it is smaller than the sum of its proper divisors (2198217956604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1648646507748 is a wasteful number, since it uses less digits than its factorization.

1648646507748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807611 (or 807609 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 66.

The spelling of 1648646507748 in words is "one trillion, six hundred forty-eight billion, six hundred forty-six million, five hundred seven thousand, seven hundred forty-eight".