47244147647 has 2 divisors, whose sum is σ = 47244147648. Its totient is φ = 47244147646.

The previous prime is 47244147617. The next prime is 47244147659. The reversal of 47244147647 is 74674144274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47244147647 - 2¹⁸ = 47243885503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47244147595 and 47244147604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47244147617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23622073823 + 23622073824.

It is an arithmetic number, because the mean of its divisors is an integer number (23622073824).

Almost surely, 2^47244147647 is an apocalyptic number.

47244147647 is a deficient number, since it is larger than the sum of its proper divisors (1).

47244147647 is an equidigital number, since it uses as much as digits as its factorization.

47244147647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4214784, while the sum is 50.

The spelling of 47244147647 in words is "forty-seven billion, two hundred forty-four million, one hundred forty-seven thousand, six hundred forty-seven".