247747030272 has 432 divisors, whose sum is σ = 861034836480. Its totient is φ = 69577906176.

The previous prime is 247747030261. The next prime is 247747030301. The reversal of 247747030272 is 272030747742.

247747030272 is a `hidden beast` number, since 247 + 74 + 70 + 3 + 0 + 272 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×247747030272² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25687083 + ... + 25696725.

Almost surely, 2^247747030272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 247747030272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430517418240).

247747030272 is an abundant number, since it is smaller than the sum of its proper divisors (613287806208).

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

247747030272 is an frugal number, since it uses more digits than its factorization.

247747030272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740 (or 9714 counting only the distinct ones).

The product of its (nonzero) digits is 921984, while the sum is 45.

The spelling of 247747030272 in words is "two hundred forty-seven billion, seven hundred forty-seven million, thirty thousand, two hundred seventy-two".