49518554849 has 2 divisors, whose sum is σ = 49518554850. Its totient is φ = 49518554848.

The previous prime is 49518554819. The next prime is 49518554861. The reversal of 49518554849 is 94845581594.

49518554849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31221123025 + 18297431824 = 176695^2 + 135268^2 .

It is a cyclic number.

It is not a de Polignac number, because 49518554849 - 2³² = 45223587553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49518554791 and 49518554800.

It is not a weakly prime, because it can be changed into another prime (49518554819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24759277424 + 24759277425.

It is an arithmetic number, because the mean of its divisors is an integer number (24759277425).

Almost surely, 2^49518554849 is an apocalyptic number.

It is an amenable number.

49518554849 is a deficient number, since it is larger than the sum of its proper divisors (1).

49518554849 is an equidigital number, since it uses as much as digits as its factorization.

49518554849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472000, while the sum is 62.

The spelling of 49518554849 in words is "forty-nine billion, five hundred eighteen million, five hundred fifty-four thousand, eight hundred forty-nine".