49728189744 has 120 divisors (see below), whose sum is σ = 147719585520. Its totient is φ = 15562543104.

The previous prime is 49728189739. The next prime is 49728189751. The reversal of 49728189744 is 44798182794.

49728189744 is a `hidden beast` number, since 497 + 2 + 8 + 18 + 97 + 44 = 666.

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 23 ways as a sum of consecutive naturals, for example, 976399 + ... + 1026065.

It is an arithmetic number, because the mean of its divisors is an integer number (1230996546).

Almost surely, 2^49728189744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49728189744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73859792760).

49728189744 is an abundant number, since it is smaller than the sum of its proper divisors (97991395776).

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

49728189744 is a wasteful number, since it uses less digits than its factorization.

49728189744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50107 (or 50098 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 49728189744 in words is "forty-nine billion, seven hundred twenty-eight million, one hundred eighty-nine thousand, seven hundred forty-four".