49517071517 has 2 divisors, whose sum is σ = 49517071518. Its totient is φ = 49517071516.

The previous prime is 49517071489. The next prime is 49517071609. The reversal of 49517071517 is 71517071594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41328450436 + 8188621081 = 203294^2 + 90491^2 .

It is a cyclic number.

It is not a de Polignac number, because 49517071517 - 2¹⁶ = 49517005981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49517071817) 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, 24758535758 + 24758535759.

It is an arithmetic number, because the mean of its divisors is an integer number (24758535759).

Almost surely, 2^49517071517 is an apocalyptic number.

It is an amenable number.

49517071517 is a deficient number, since it is larger than the sum of its proper divisors (1).

49517071517 is an equidigital number, since it uses as much as digits as its factorization.

49517071517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 308700, while the sum is 47.

The spelling of 49517071517 in words is "forty-nine billion, five hundred seventeen million, seventy-one thousand, five hundred seventeen".