1687397404882 has 16 divisors (see below), whose sum is σ = 2895600241152. Its totient is φ = 722440572480.

The previous prime is 1687397404871. The next prime is 1687397404897. The reversal of 1687397404882 is 2884047937861.

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, 60797623 + ... + 60825370.

It is an arithmetic number, because the mean of its divisors is an integer number (180975015072).

Almost surely, 2^{1687397404882} is an apocalyptic number.

1687397404882 is a deficient number, since it is larger than the sum of its proper divisors (1208202836270).

1687397404882 is a wasteful number, since it uses less digits than its factorization.

1687397404882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121623993.

The product of its (nonzero) digits is 130056192, while the sum is 67.

The spelling of 1687397404882 in words is "one trillion, six hundred eighty-seven billion, three hundred ninety-seven million, four hundred four thousand, eight hundred eighty-two".