247931472347 has 16 divisors (see below), whose sum is σ = 271122401760. Its totient is φ = 225339708672.

The previous prime is 247931472331. The next prime is 247931472407. The reversal of 247931472347 is 743274139742.

It is not a de Polignac number, because 247931472347 - 2⁴ = 247931472331 is a prime.

It is a super-2 number, since 2×247931472347² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247931472307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334529 + ... + 779597.

It is an arithmetic number, because the mean of its divisors is an integer number (16945150110).

Almost surely, 2^247931472347 is an apocalyptic number.

247931472347 is a deficient number, since it is larger than the sum of its proper divisors (23190929413).

247931472347 is a wasteful number, since it uses less digits than its factorization.

247931472347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445742.

The product of its digits is 7112448, while the sum is 53.

The spelling of 247931472347 in words is "two hundred forty-seven billion, nine hundred thirty-one million, four hundred seventy-two thousand, three hundred forty-seven".