609543129420 has 168 divisors, whose sum is σ = 1919938757184. Its totient is φ = 162480826368.

The previous prime is 609543129343. The next prime is 609543129443. The reversal of 609543129420 is 24921345906.

609543129420 is a `hidden beast` number, since 6 + 0 + 9 + 543 + 12 + 94 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 45730797 + ... + 45744123.

It is an arithmetic number, because the mean of its divisors is an integer number (11428206888).

Almost surely, 2^609543129420 is an apocalyptic number.

609543129420 is a gapful number since it is divisible by the number (60) 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 609543129420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959969378592).

609543129420 is an abundant number, since it is smaller than the sum of its proper divisors (1310395627764).

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

609543129420 is a wasteful number, since it uses less digits than its factorization.

609543129420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16491 (or 16474 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 609543129420 in words is "six hundred nine billion, five hundred forty-three million, one hundred twenty-nine thousand, four hundred twenty".