1684373542506 has 48 divisors (see below), whose sum is σ = 3976183639680. Its totient is φ = 528430910400.

The previous prime is 1684373542477. The next prime is 1684373542507. The reversal of 1684373542506 is 6052453734861.

1684373542506 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 37 + 354 + 250 + 6 = 666.

It is a super-2 number, since 2×1684373542506² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1684373542507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53949970 + ... + 53981181.

It is an arithmetic number, because the mean of its divisors is an integer number (82837159160).

Almost surely, 2^{1684373542506} is an apocalyptic number.

1684373542506 is an abundant number, since it is smaller than the sum of its proper divisors (2291810097174).

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

1684373542506 is a wasteful number, since it uses less digits than its factorization.

1684373542506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107931196 (or 107931173 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 54.

The spelling of 1684373542506 in words is "one trillion, six hundred eighty-four billion, three hundred seventy-three million, five hundred forty-two thousand, five hundred six".