47145319289 has 2 divisors, whose sum is σ = 47145319290. Its totient is φ = 47145319288.

The previous prime is 47145319271. The next prime is 47145319313. The reversal of 47145319289 is 98291354174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41828430400 + 5316888889 = 204520^2 + 72917^2 .

It is a cyclic number.

It is not a de Polignac number, because 47145319289 - 2³² = 42850351993 is a prime.

It is a super-2 number, since 2×47145319289² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47145319289.

It is not a weakly prime, because it can be changed into another prime (47145319189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23572659644 + 23572659645.

It is an arithmetic number, because the mean of its divisors is an integer number (23572659645).

Almost surely, 2^47145319289 is an apocalyptic number.

It is an amenable number.

47145319289 is a deficient number, since it is larger than the sum of its proper divisors (1).

47145319289 is an equidigital number, since it uses as much as digits as its factorization.

47145319289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The spelling of 47145319289 in words is "forty-seven billion, one hundred forty-five million, three hundred nineteen thousand, two hundred eighty-nine".