247230667847 has 16 divisors (see below), whose sum is σ = 269242857600. Its totient is φ = 226120053600.

The previous prime is 247230667829. The next prime is 247230667861. The reversal of 247230667847 is 748766032742.

It is a cyclic number.

It is not a de Polignac number, because 247230667847 - 2¹² = 247230663751 is a prime.

It is a super-2 number, since 2×247230667847² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 247230667792 and 247230667801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247230667807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9161228 + ... + 9188174.

It is an arithmetic number, because the mean of its divisors is an integer number (16827678600).

Almost surely, 2^247230667847 is an apocalyptic number.

247230667847 is a deficient number, since it is larger than the sum of its proper divisors (22012189753).

247230667847 is a wasteful number, since it uses less digits than its factorization.

247230667847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43646.

The product of its (nonzero) digits is 18966528, while the sum is 56.

The spelling of 247230667847 in words is "two hundred forty-seven billion, two hundred thirty million, six hundred sixty-seven thousand, eight hundred forty-seven".