1609831323604 has 96 divisors (see below), whose sum is σ = 3504626625024. Its totient is φ = 631173980160.

The previous prime is 1609831323593. The next prime is 1609831323631. The reversal of 1609831323604 is 4063231389061.

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 31 ways as a sum of consecutive naturals, for example, 18113644 + ... + 18202300.

It is an arithmetic number, because the mean of its divisors is an integer number (36506527344).

Almost surely, 2^{1609831323604} is an apocalyptic number.

1609831323604 is a gapful number since it is divisible by the number (14) 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 1609831323604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1752313312512).

1609831323604 is an abundant number, since it is smaller than the sum of its proper divisors (1894795301420).

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

1609831323604 is a wasteful number, since it uses less digits than its factorization.

1609831323604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89753 (or 89751 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 1609831323604 in words is "one trillion, six hundred nine billion, eight hundred thirty-one million, three hundred twenty-three thousand, six hundred four".