609472227840 has 1280 divisors, whose sum is σ = 2443729305600. Its totient is φ = 126439391232.

The previous prime is 609472227827. The next prime is 609472227853. The reversal of 609472227840 is 48722274906.

It is an interprime number because it is at equal distance from previous prime (609472227827) and next prime (609472227853).

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4798993857 + ... + 4798993983.

It is an arithmetic number, because the mean of its divisors is an integer number (1909163520).

Almost surely, 2^609472227840 is an apocalyptic number.

609472227840 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 609472227840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1221864652800).

609472227840 is an abundant number, since it is smaller than the sum of its proper divisors (1834257077760).

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

609472227840 is a wasteful number, since it uses less digits than its factorization.

609472227840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 609472227840 in words is "six hundred nine billion, four hundred seventy-two million, two hundred twenty-seven thousand, eight hundred forty".