49389411749 has 2 divisors, whose sum is σ = 49389411750. Its totient is φ = 49389411748.

The previous prime is 49389411713. The next prime is 49389411787. The reversal of 49389411749 is 94711498394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48815809249 + 573602500 = 220943^2 + 23950^2 .

It is a cyclic number.

It is not a de Polignac number, because 49389411749 - 2¹² = 49389407653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49389411649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24694705874 + 24694705875.

It is an arithmetic number, because the mean of its divisors is an integer number (24694705875).

Almost surely, 2^49389411749 is an apocalyptic number.

It is an amenable number.

49389411749 is a deficient number, since it is larger than the sum of its proper divisors (1).

49389411749 is an equidigital number, since it uses as much as digits as its factorization.

49389411749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 59.

The spelling of 49389411749 in words is "forty-nine billion, three hundred eighty-nine million, four hundred eleven thousand, seven hundred forty-nine".