1687180233406 has 16 divisors (see below), whose sum is σ = 2641913130528. Its totient is φ = 806573336800.

The previous prime is 1687180233371. The next prime is 1687180233433. The reversal of 1687180233406 is 6043320817861.

It is a self number, because there is not a number n which added to its sum of digits gives 1687180233406.

It is a congruent number.

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, 7592665 + ... + 7811716.

It is an arithmetic number, because the mean of its divisors is an integer number (165119570658).

Almost surely, 2^{1687180233406} is an apocalyptic number.

1687180233406 is a deficient number, since it is larger than the sum of its proper divisors (954732897122).

1687180233406 is a wasteful number, since it uses less digits than its factorization.

1687180233406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15406787.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 1687180233406 in words is "one trillion, six hundred eighty-seven billion, one hundred eighty million, two hundred thirty-three thousand, four hundred six".