49773221943640 has 512 divisors, whose sum is σ = 130365075456000. Its totient is φ = 16940198854656.

The previous prime is 49773221943637. The next prime is 49773221943649. The reversal of 49773221943640 is 4634912237794.

49773221943640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49773221943649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41931947127 + ... + 41931948313.

It is an arithmetic number, because the mean of its divisors is an integer number (254619288000).

Almost surely, 2^{49773221943640} is an apocalyptic number.

49773221943640 is a gapful number since it is divisible by the number (40) 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 49773221943640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65182537728000).

49773221943640 is an abundant number, since it is smaller than the sum of its proper divisors (80591853512360).

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

49773221943640 is a wasteful number, since it uses less digits than its factorization.

49773221943640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 61.

The spelling of 49773221943640 in words is "forty-nine trillion, seven hundred seventy-three billion, two hundred twenty-one million, nine hundred forty-three thousand, six hundred forty".