1648828511725 has 12 divisors (see below), whose sum is σ = 2048030417664. Its totient is φ = 1316815671920.

The previous prime is 1648828511651. The next prime is 1648828511741. The reversal of 1648828511725 is 5271158288461.

It is a de Polignac number, because none of the positive numbers 2^k-1648828511725 is a prime.

It is a super-2 number, since 2×1648828511725² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1648828511725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56163469 + ... + 56192818.

It is an arithmetic number, because the mean of its divisors is an integer number (170669201472).

Almost surely, 2^{1648828511725} is an apocalyptic number.

It is an amenable number.

1648828511725 is a deficient number, since it is larger than the sum of its proper divisors (399201905939).

1648828511725 is a wasteful number, since it uses less digits than its factorization.

1648828511725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112356884 (or 112356879 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 58.

The spelling of 1648828511725 in words is "one trillion, six hundred forty-eight billion, eight hundred twenty-eight million, five hundred eleven thousand, seven hundred twenty-five".