247983055667 has 4 divisors (see below), whose sum is σ = 247985400960. Its totient is φ = 247980710376.

The previous prime is 247983055637. The next prime is 247983055681. The reversal of 247983055667 is 766550389742.

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 247983055667 - 2¹⁶ = 247982990131 is a prime.

It is a super-2 number, since 2×247983055667² (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 (247983055637) 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, 1006163 + ... + 1228140.

It is an arithmetic number, because the mean of its divisors is an integer number (61996350240).

Almost surely, 2^247983055667 is an apocalyptic number.

247983055667 is a deficient number, since it is larger than the sum of its proper divisors (2345293).

247983055667 is a wasteful number, since it uses less digits than its factorization.

247983055667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345292.

The product of its (nonzero) digits is 76204800, while the sum is 62.

The spelling of 247983055667 in words is "two hundred forty-seven billion, nine hundred eighty-three million, fifty-five thousand, six hundred sixty-seven".