609464646000 has 720 divisors, whose sum is σ = 2486961011808. Its totient is φ = 138700800000.

The previous prime is 609464645981. The next prime is 609464646041. The reversal of 609464646000 is 646464906.

609464646000 is a `hidden beast` number, since 60 + 94 + 6 + 46 + 460 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 221380624 + ... + 221383376.

Almost surely, 2^609464646000 is an apocalyptic number.

609464646000 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 609464646000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243480505904).

609464646000 is an abundant number, since it is smaller than the sum of its proper divisors (1877496365808).

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

609464646000 is a wasteful number, since it uses less digits than its factorization.

609464646000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047 (or 3021 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 609464646000 in words is "six hundred nine billion, four hundred sixty-four million, six hundred forty-six thousand".