247087668863 has 24 divisors (see below), whose sum is σ = 290586371184. Its totient is φ = 209467104000.

The previous prime is 247087668857. The next prime is 247087668911. The reversal of 247087668863 is 368866780742.

It is not a de Polignac number, because 247087668863 - 2¹² = 247087664767 is a prime.

It is a super-2 number, since 2×247087668863² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247087668863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247087668803) 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 23 ways as a sum of consecutive naturals, for example, 4660343 + ... + 4713063.

It is an arithmetic number, because the mean of its divisors is an integer number (12107765466).

Almost surely, 2^247087668863 is an apocalyptic number.

247087668863 is a deficient number, since it is larger than the sum of its proper divisors (43498702321).

247087668863 is a wasteful number, since it uses less digits than its factorization.

247087668863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53783 (or 53776 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 65.

The spelling of 247087668863 in words is "two hundred forty-seven billion, eighty-seven million, six hundred sixty-eight thousand, eight hundred sixty-three".