247244938272 has 192 divisors, whose sum is σ = 760734374400. Its totient is φ = 77907744000.

The previous prime is 247244938231. The next prime is 247244938313. The reversal of 247244938272 is 272839442742.

247244938272 is a `hidden beast` number, since 2 + 4 + 7 + 2 + 4 + 493 + 82 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (247244938231) and next prime (247244938313).

It is a super-2 number, since 2×247244938272² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7650147 + ... + 7682397.

It is an arithmetic number, because the mean of its divisors is an integer number (3962158200).

Almost surely, 2^247244938272 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 247244938272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380367187200).

247244938272 is an abundant number, since it is smaller than the sum of its proper divisors (513489436128).

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

247244938272 is a wasteful number, since it uses less digits than its factorization.

247244938272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32756 (or 32742 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The spelling of 247244938272 in words is "two hundred forty-seven billion, two hundred forty-four million, nine hundred thirty-eight thousand, two hundred seventy-two".