47438919533 has 2 divisors, whose sum is σ = 47438919534. Its totient is φ = 47438919532.

The previous prime is 47438919523. The next prime is 47438919569. The reversal of 47438919533 is 33591983474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35580145129 + 11858774404 = 188627^2 + 108898^2 .

It is a cyclic number.

It is not a de Polignac number, because 47438919533 - 2²⁶ = 47371810669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47438919523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23719459766 + 23719459767.

It is an arithmetic number, because the mean of its divisors is an integer number (23719459767).

Almost surely, 2^47438919533 is an apocalyptic number.

It is an amenable number.

47438919533 is a deficient number, since it is larger than the sum of its proper divisors (1).

47438919533 is an equidigital number, since it uses as much as digits as its factorization.

47438919533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The spelling of 47438919533 in words is "forty-seven billion, four hundred thirty-eight million, nine hundred nineteen thousand, five hundred thirty-three".