47450042389 has 2 divisors, whose sum is σ = 47450042390. Its totient is φ = 47450042388.

The previous prime is 47450042377. The next prime is 47450042417. The reversal of 47450042389 is 98324005474.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40233539889 + 7216502500 = 200583^2 + 84950^2 .

It is a cyclic number.

It is not a de Polignac number, because 47450042389 - 2¹⁹ = 47449518101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47450042309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23725021194 + 23725021195.

It is an arithmetic number, because the mean of its divisors is an integer number (23725021195).

Almost surely, 2^47450042389 is an apocalyptic number.

It is an amenable number.

47450042389 is a deficient number, since it is larger than the sum of its proper divisors (1).

47450042389 is an equidigital number, since it uses as much as digits as its factorization.

47450042389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 47450042389 in words is "forty-seven billion, four hundred fifty million, forty-two thousand, three hundred eighty-nine".