1609427474928 has 360 divisors, whose sum is σ = 5700778491408. Its totient is φ = 420086145024.

The previous prime is 1609427474911. The next prime is 1609427474981. The reversal of 1609427474928 is 8294747249061.

1609427474928 is a `hidden beast` number, since 1 + 60 + 9 + 42 + 7 + 47 + 492 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 71 ways as a sum of consecutive naturals, for example, 8807175 + ... + 8988057.

Almost surely, 2^{1609427474928} is an apocalyptic number.

1609427474928 is a gapful number since it is divisible by the number (18) 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 1609427474928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2850389245704).

1609427474928 is an abundant number, since it is smaller than the sum of its proper divisors (4091351016480).

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

1609427474928 is a wasteful number, since it uses less digits than its factorization.

1609427474928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181021 (or 181005 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 1609427474928 in words is "one trillion, six hundred nine billion, four hundred twenty-seven million, four hundred seventy-four thousand, nine hundred twenty-eight".