49720853824 has 56 divisors (see below), whose sum is σ = 100394536320. Its totient is φ = 24425078784.

The previous prime is 49720853821. The next prime is 49720853881. The reversal of 49720853824 is 42835802794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49720853821) 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 7 ways as a sum of consecutive naturals, for example, 10392937 + ... + 10397719.

Almost surely, 2^49720853824 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 49720853824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50197268160).

49720853824 is an abundant number, since it is smaller than the sum of its proper divisors (50673682496).

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

49720853824 is a wasteful number, since it uses less digits than its factorization.

49720853824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607 (or 7597 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 49720853824 in words is "forty-nine billion, seven hundred twenty million, eight hundred fifty-three thousand, eight hundred twenty-four".