1728656083604 has 12 divisors (see below), whose sum is σ = 3106908907284. Its totient is φ = 840967824384.

The previous prime is 1728656083597. The next prime is 1728656083667. The reversal of 1728656083604 is 4063806568271.

It can be written as a sum of positive squares in 2 ways, for example, as 861280514704 + 867375568900 = 928052^2 + 931330^2 .

It is a super-2 number, since 2×1728656083604² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1728656083604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5840054189 + ... + 5840054484.

It is an arithmetic number, because the mean of its divisors is an integer number (258909075607).

Almost surely, 2^{1728656083604} is an apocalyptic number.

It is an amenable number.

1728656083604 is a deficient number, since it is larger than the sum of its proper divisors (1378252823680).

1728656083604 is a wasteful number, since it uses less digits than its factorization.

1728656083604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680108714 (or 11680108712 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 1728656083604 in words is "one trillion, seven hundred twenty-eight billion, six hundred fifty-six million, eighty-three thousand, six hundred four".