49847706749 has 2 divisors, whose sum is σ = 49847706750. Its totient is φ = 49847706748.

The previous prime is 49847706739. The next prime is 49847706791. The reversal of 49847706749 is 94760774894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40840368100 + 9007338649 = 202090^2 + 94907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49847706749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49847706719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24923853374 + 24923853375.

It is an arithmetic number, because the mean of its divisors is an integer number (24923853375).

Almost surely, 2^49847706749 is an apocalyptic number.

It is an amenable number.

49847706749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49847706749 is an equidigital number, since it uses as much as digits as its factorization.

49847706749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85349376, while the sum is 65.

The spelling of 49847706749 in words is "forty-nine billion, eight hundred forty-seven million, seven hundred six thousand, seven hundred forty-nine".