49998156649 has 16 divisors (see below), whose sum is σ = 59012236800. Its totient is φ = 41472440064.

The previous prime is 49998156601. The next prime is 49998156673. The reversal of 49998156649 is 94665189994.

It is a cyclic number.

It is not a de Polignac number, because 49998156649 - 2⁷ = 49998156521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49998156679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824484 + ... + 883045.

It is an arithmetic number, because the mean of its divisors is an integer number (3688264800).

Almost surely, 2^49998156649 is an apocalyptic number.

It is an amenable number.

49998156649 is a deficient number, since it is larger than the sum of its proper divisors (9014080151).

49998156649 is a wasteful number, since it uses less digits than its factorization.

49998156649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707672.

The product of its digits is 151165440, while the sum is 70.

The spelling of 49998156649 in words is "forty-nine billion, nine hundred ninety-eight million, one hundred fifty-six thousand, six hundred forty-nine".