49881495840 has 192 divisors, whose sum is σ = 174222099072. Its totient is φ = 11894169600.

The previous prime is 49881495827. The next prime is 49881495857. The reversal of 49881495840 is 4859418894.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 31 ways as a sum of consecutive naturals, for example, 244644 + ... + 399516.

It is an arithmetic number, because the mean of its divisors is an integer number (907406766).

Almost surely, 2^49881495840 is an apocalyptic number.

49881495840 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 49881495840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87111049536).

49881495840 is an abundant number, since it is smaller than the sum of its proper divisors (124340603232).

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

49881495840 is a wasteful number, since it uses less digits than its factorization.

49881495840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154963 (or 154955 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 60.

The spelling of 49881495840 in words is "forty-nine billion, eight hundred eighty-one million, four hundred ninety-five thousand, eight hundred forty".