49548489409 has 2 divisors, whose sum is σ = 49548489410. Its totient is φ = 49548489408.

The previous prime is 49548489349. The next prime is 49548489433. The reversal of 49548489409 is 90498484594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44889744384 + 4658745025 = 211872^2 + 68255^2 .

It is a cyclic number.

It is not a de Polignac number, because 49548489409 - 2²¹ = 49546392257 is a prime.

It is not a weakly prime, because it can be changed into another prime (49548489509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24774244704 + 24774244705.

It is an arithmetic number, because the mean of its divisors is an integer number (24774244705).

Almost surely, 2^49548489409 is an apocalyptic number.

It is an amenable number.

49548489409 is a deficient number, since it is larger than the sum of its proper divisors (1).

49548489409 is an equidigital number, since it uses as much as digits as its factorization.

49548489409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59719680, while the sum is 64.

The spelling of 49548489409 in words is "forty-nine billion, five hundred forty-eight million, four hundred eighty-nine thousand, four hundred nine".