49389338880 has 864 divisors, whose sum is σ = 210603294720. Its totient is φ = 10437672960.

The previous prime is 49389338839. The next prime is 49389338881. The reversal of 49389338880 is 8883398394.

49389338880 is a `hidden beast` number, since 4 + 93 + 8 + 93 + 388 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (49389338881) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 57495891 + ... + 57496749.

Almost surely, 2^49389338880 is an apocalyptic number.

49389338880 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 49389338880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105301647360).

49389338880 is an abundant number, since it is smaller than the sum of its proper divisors (161213955840).

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

49389338880 is a wasteful number, since it uses less digits than its factorization.

49389338880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 49389338880 in words is "forty-nine billion, three hundred eighty-nine million, three hundred thirty-eight thousand, eight hundred eighty".