247011343172207 has 4 divisors (see below), whose sum is σ = 247021684023456. Its totient is φ = 247001002320960.

The previous prime is 247011343172203. The next prime is 247011343172213. The reversal of 247011343172207 is 702271343110742.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 247011343172207 - 2² = 247011343172203 is a prime.

It is a super-2 number, since 2×247011343172207² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247011343172203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170389794 + ... + 5170437567.

It is an arithmetic number, because the mean of its divisors is an integer number (61755421005864).

Almost surely, 2^{247011343172207} is an apocalyptic number.

247011343172207 is a deficient number, since it is larger than the sum of its proper divisors (10340851249).

247011343172207 is a wasteful number, since it uses less digits than its factorization.

247011343172207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340851248.

The product of its (nonzero) digits is 395136, while the sum is 44.

Adding to 247011343172207 its reverse (702271343110742), we get a palindrome (949282686282949).

The spelling of 247011343172207 in words is "two hundred forty-seven trillion, eleven billion, three hundred forty-three million, one hundred seventy-two thousand, two hundred seven".