1687204000438 has 32 divisors (see below), whose sum is σ = 2862171666432. Its totient is φ = 738986491200.

The previous prime is 1687204000411. The next prime is 1687204000451. The reversal of 1687204000438 is 8340004027861.

It is a junction number, because it is equal to n+sod(n) for n = 1687204000394 and 1687204000403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5149906 + ... + 5467717.

It is an arithmetic number, because the mean of its divisors is an integer number (89442864576).

Almost surely, 2^{1687204000438} is an apocalyptic number.

1687204000438 is a deficient number, since it is larger than the sum of its proper divisors (1174967665994).

1687204000438 is a wasteful number, since it uses less digits than its factorization.

1687204000438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10617900.

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 1687204000438 in words is "one trillion, six hundred eighty-seven billion, two hundred four million, four hundred thirty-eight", and thus it is an aban number.