47351505913 has 2 divisors, whose sum is σ = 47351505914. Its totient is φ = 47351505912.

The previous prime is 47351505889. The next prime is 47351505961. The reversal of 47351505913 is 31950515374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26473567849 + 20877938064 = 162707^2 + 144492^2 .

It is a cyclic number.

It is not a de Polignac number, because 47351505913 - 2⁹ = 47351505401 is a prime.

It is a super-2 number, since 2×47351505913² (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 47351505913.

It is not a weakly prime, because it can be changed into another prime (47351505983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23675752956 + 23675752957.

It is an arithmetic number, because the mean of its divisors is an integer number (23675752957).

Almost surely, 2^47351505913 is an apocalyptic number.

It is an amenable number.

47351505913 is a deficient number, since it is larger than the sum of its proper divisors (1).

47351505913 is an equidigital number, since it uses as much as digits as its factorization.

47351505913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 43.

The spelling of 47351505913 in words is "forty-seven billion, three hundred fifty-one million, five hundred five thousand, nine hundred thirteen".