49443911808 has 96 divisors (see below), whose sum is σ = 137294460240. Its totient is φ = 15764660736.

The previous prime is 49443911801. The next prime is 49443911821. The reversal of 49443911808 is 80811934494.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (49443911801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81435 + ... + 324837.

Almost surely, 2^49443911808 is an apocalyptic number.

49443911808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49443911808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68647230120).

49443911808 is an abundant number, since it is smaller than the sum of its proper divisors (87850548432).

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

49443911808 is a wasteful number, since it uses less digits than its factorization.

49443911808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243466 (or 243431 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 49443911808 in words is "forty-nine billion, four hundred forty-three million, nine hundred eleven thousand, eight hundred eight".