47982431689 has 2 divisors, whose sum is σ = 47982431690. Its totient is φ = 47982431688.

The previous prime is 47982431669. The next prime is 47982431729. The reversal of 47982431689 is 98613428974.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32136657289 + 15845774400 = 179267^2 + 125880^2 .

It is a cyclic number.

It is not a de Polignac number, because 47982431689 - 2¹³ = 47982423497 is a prime.

It is not a weakly prime, because it can be changed into another prime (47982431659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23991215844 + 23991215845.

It is an arithmetic number, because the mean of its divisors is an integer number (23991215845).

Almost surely, 2^47982431689 is an apocalyptic number.

It is an amenable number.

47982431689 is a deficient number, since it is larger than the sum of its proper divisors (1).

47982431689 is an equidigital number, since it uses as much as digits as its factorization.

47982431689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 61.

The spelling of 47982431689 in words is "forty-seven billion, nine hundred eighty-two million, four hundred thirty-one thousand, six hundred eighty-nine".