1687200188552 has 16 divisors (see below), whose sum is σ = 3249000363660. Its totient is φ = 820800091584.

The previous prime is 1687200188519. The next prime is 1687200188573. The reversal of 1687200188552 is 2558810027861.

It can be written as a sum of positive squares in 2 ways, for example, as 1175823597316 + 511376591236 = 1084354^2 + 715106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1687200188494 and 1687200188503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2850000023 + ... + 2850000614.

Almost surely, 2^{1687200188552} is an apocalyptic number.

It is an amenable number.

1687200188552 is a deficient number, since it is larger than the sum of its proper divisors (1561800175108).

1687200188552 is a wasteful number, since it uses less digits than its factorization.

1687200188552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700000680 (or 5700000676 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 53.

The spelling of 1687200188552 in words is "one trillion, six hundred eighty-seven billion, two hundred million, one hundred eighty-eight thousand, five hundred fifty-two".