47406737381 has 2 divisors, whose sum is σ = 47406737382. Its totient is φ = 47406737380.

The previous prime is 47406737317. The next prime is 47406737453. The reversal of 47406737381 is 18373760474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30768317281 + 16638420100 = 175409^2 + 128990^2 .

It is a cyclic number.

It is not a de Polignac number, because 47406737381 - 2⁶ = 47406737317 is a prime.

It is a super-2 number, since 2×47406737381² (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 (47406730381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23703368690 + 23703368691.

It is an arithmetic number, because the mean of its divisors is an integer number (23703368691).

Almost surely, 2^47406737381 is an apocalyptic number.

It is an amenable number.

47406737381 is a deficient number, since it is larger than the sum of its proper divisors (1).

47406737381 is an equidigital number, since it uses as much as digits as its factorization.

47406737381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 47406737381 in words is "forty-seven billion, four hundred six million, seven hundred thirty-seven thousand, three hundred eighty-one".