49388493449 has 6 divisors (see below), whose sum is σ = 52464593694. Its totient is φ = 46483287680.

The previous prime is 49388493443. The next prime is 49388493461. The reversal of 49388493449 is 94439488394.

It can be written as a sum of positive squares in 3 ways, for example, as 8136040000 + 41252453449 = 90200^2 + 203107^2 .

It is not a de Polignac number, because 49388493449 - 2²⁸ = 49120057993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49388493443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85446932 + ... + 85447509.

It is an arithmetic number, because the mean of its divisors is an integer number (8744098949).

Almost surely, 2^49388493449 is an apocalyptic number.

It is an amenable number.

49388493449 is a deficient number, since it is larger than the sum of its proper divisors (3076100245).

49388493449 is a wasteful number, since it uses less digits than its factorization.

49388493449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170894475 (or 170894458 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 65.

The spelling of 49388493449 in words is "forty-nine billion, three hundred eighty-eight million, four hundred ninety-three thousand, four hundred forty-nine".