1684398472632 has 160 divisors (see below), whose sum is σ = 5011679146320. Its totient is φ = 526716380160.

The previous prime is 1684398472451. The next prime is 1684398472733. The reversal of 1684398472632 is 2362748934861.

1684398472632 is a `hidden beast` number, since 1 + 6 + 8 + 43 + 98 + 472 + 6 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1684398472632.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3132882 + ... + 3630942.

Almost surely, 2^{1684398472632} is an apocalyptic number.

1684398472632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1684398472632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505839573160).

1684398472632 is an abundant number, since it is smaller than the sum of its proper divisors (3327280673688).

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

1684398472632 is a wasteful number, since it uses less digits than its factorization.

1684398472632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498403 (or 498390 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 63.

The spelling of 1684398472632 in words is "one trillion, six hundred eighty-four billion, three hundred ninety-eight million, four hundred seventy-two thousand, six hundred thirty-two".