40327247647 has 2 divisors, whose sum is σ = 40327247648. Its totient is φ = 40327247646.

The previous prime is 40327247621. The next prime is 40327247651. The reversal of 40327247647 is 74674272304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40327247647 - 2¹¹ = 40327245599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40327247597 and 40327247606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40327247657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20163623823 + 20163623824.

It is an arithmetic number, because the mean of its divisors is an integer number (20163623824).

Almost surely, 2^40327247647 is an apocalyptic number.

40327247647 is a deficient number, since it is larger than the sum of its proper divisors (1).

40327247647 is an equidigital number, since it uses as much as digits as its factorization.

40327247647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1580544, while the sum is 46.

The spelling of 40327247647 in words is "forty billion, three hundred twenty-seven million, two hundred forty-seven thousand, six hundred forty-seven".