49731618880 has 28 divisors (see below), whose sum is σ = 118423418220. Its totient is φ = 19892647424.

The previous prime is 49731618863. The next prime is 49731618883. The reversal of 49731618880 is 8881613794.

It can be written as a sum of positive squares in 2 ways, for example, as 14300333056 + 35431285824 = 119584^2 + 188232^2 .

It is not an unprimeable number, because it can be changed into a prime (49731618883) 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 3 ways as a sum of consecutive naturals, for example, 77705335 + ... + 77705974.

Almost surely, 2^49731618880 is an apocalyptic number.

49731618880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49731618880 is an abundant number, since it is smaller than the sum of its proper divisors (68691799340).

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

49731618880 is a wasteful number, since it uses less digits than its factorization.

49731618880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155411326 (or 155411316 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 49731618880 in words is "forty-nine billion, seven hundred thirty-one million, six hundred eighteen thousand, eight hundred eighty".