47049931349 has 2 divisors, whose sum is σ = 47049931350. Its totient is φ = 47049931348.

The previous prime is 47049931339. The next prime is 47049931373. The reversal of 47049931349 is 94313994074.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44655297124 + 2394634225 = 211318^2 + 48935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47049931349 is a prime.

It is a super-2 number, since 2×47049931349² (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 47049931349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47049931339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23524965674 + 23524965675.

It is an arithmetic number, because the mean of its divisors is an integer number (23524965675).

Almost surely, 2^47049931349 is an apocalyptic number.

It is an amenable number.

47049931349 is a deficient number, since it is larger than the sum of its proper divisors (1).

47049931349 is an equidigital number, since it uses as much as digits as its factorization.

47049931349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 53.

The spelling of 47049931349 in words is "forty-seven billion, forty-nine million, nine hundred thirty-one thousand, three hundred forty-nine".