47419834381 has 2 divisors, whose sum is σ = 47419834382. Its totient is φ = 47419834380.

The previous prime is 47419834373. The next prime is 47419834447. The reversal of 47419834381 is 18343891474.

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., 39126818025 + 8293016356 = 197805^2 + 91066^2 .

It is a cyclic number.

It is not a de Polignac number, because 47419834381 - 2³ = 47419834373 is a prime.

It is a super-2 number, since 2×47419834381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47419835381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23709917190 + 23709917191.

It is an arithmetic number, because the mean of its divisors is an integer number (23709917191).

Almost surely, 2^47419834381 is an apocalyptic number.

It is an amenable number.

47419834381 is a deficient number, since it is larger than the sum of its proper divisors (1).

47419834381 is an equidigital number, since it uses as much as digits as its factorization.

47419834381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The spelling of 47419834381 in words is "forty-seven billion, four hundred nineteen million, eight hundred thirty-four thousand, three hundred eighty-one".