1725223281064 has 16 divisors (see below), whose sum is σ = 3240478710900. Its totient is φ = 861095624832.

The previous prime is 1725223281049. The next prime is 1725223281073. The reversal of 1725223281064 is 4601823225271.

It can be written as a sum of positive squares in 2 ways, for example, as 1641909076900 + 83314204164 = 1281370^2 + 288642^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1725223281064.

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, 189497127 + ... + 189506230.

Almost surely, 2^{1725223281064} is an apocalyptic number.

It is an amenable number.

1725223281064 is a deficient number, since it is larger than the sum of its proper divisors (1515255429836).

1725223281064 is a wasteful number, since it uses less digits than its factorization.

1725223281064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379003932 (or 379003928 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 1725223281064 in words is "one trillion, seven hundred twenty-five billion, two hundred twenty-three million, two hundred eighty-one thousand, sixty-four".