49800418638 has 16 divisors (see below), whose sum is σ = 99643557456. Its totient is φ = 16593019520.

The previous prime is 49800418573. The next prime is 49800418663. The reversal of 49800418638 is 83681400894.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1764843 + ... + 1792838.

It is an arithmetic number, because the mean of its divisors is an integer number (6227722341).

Almost surely, 2^49800418638 is an apocalyptic number.

49800418638 is an abundant number, since it is smaller than the sum of its proper divisors (49843138818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49800418638 is a wasteful number, since it uses less digits than its factorization.

49800418638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3560019.

The product of its (nonzero) digits is 1327104, while the sum is 51.

The spelling of 49800418638 in words is "forty-nine billion, eight hundred million, four hundred eighteen thousand, six hundred thirty-eight".