1687671004332 has 18 divisors (see below), whose sum is σ = 3937909510668. Its totient is φ = 562555501368.

The previous prime is 1687671004321. The next prime is 1687671004387. The reversal of 1687671004332 is 2334001767861.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4312719 + ... + 4687737.

Almost surely, 2^{1687671004332} is an apocalyptic number.

1687671004332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1687671004332 is an abundant number, since it is smaller than the sum of its proper divisors (2250238506336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1687671004332 is an frugal number, since it uses more digits than its factorization.

1687671004332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750045 (or 375024 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

Multiplying 1687671004332 by its sum of digits (48), we get a square (81008208207936 = 9000456²).

The spelling of 1687671004332 in words is "one trillion, six hundred eighty-seven billion, six hundred seventy-one million, four thousand, three hundred thirty-two".