247623047647 has 2 divisors, whose sum is σ = 247623047648. Its totient is φ = 247623047646.

The previous prime is 247623047641. The next prime is 247623047669. The reversal of 247623047647 is 746740326742.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 247623047647 - 2⁷ = 247623047519 is a prime.

It is a super-2 number, since 2×247623047647² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247623047594 and 247623047603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247623047641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123811523823 + 123811523824.

It is an arithmetic number, because the mean of its divisors is an integer number (123811523824).

Almost surely, 2^247623047647 is an apocalyptic number.

247623047647 is a deficient number, since it is larger than the sum of its proper divisors (1).

247623047647 is an equidigital number, since it uses as much as digits as its factorization.

247623047647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9483264, while the sum is 52.

The spelling of 247623047647 in words is "two hundred forty-seven billion, six hundred twenty-three million, forty-seven thousand, six hundred forty-seven".