1684156081348 has 48 divisors (see below), whose sum is σ = 3249940651776. Its totient is φ = 758914369920.

The previous prime is 1684156081343. The next prime is 1684156081367. The reversal of 1684156081348 is 8431806514861.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1684156081343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834111 + ... + 2594662.

It is an arithmetic number, because the mean of its divisors is an integer number (67707096912).

Almost surely, 2^{1684156081348} is an apocalyptic number.

It is an amenable number.

1684156081348 is a deficient number, since it is larger than the sum of its proper divisors (1565784570428).

1684156081348 is a wasteful number, since it uses less digits than its factorization.

1684156081348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428964 (or 4428962 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 1684156081348 in words is "one trillion, six hundred eighty-four billion, one hundred fifty-six million, eighty-one thousand, three hundred forty-eight".