49983396840 has 512 divisors, whose sum is σ = 189800755200. Its totient is φ = 11612160000.

The previous prime is 49983396833. The next prime is 49983396851. The reversal of 49983396840 is 4869338994.

49983396840 is a `hidden beast` number, since 4 + 99 + 83 + 396 + 84 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17843440 + ... + 17846240.

It is an arithmetic number, because the mean of its divisors is an integer number (370704600).

Almost surely, 2^49983396840 is an apocalyptic number.

49983396840 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 49983396840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94900377600).

49983396840 is an abundant number, since it is smaller than the sum of its proper divisors (139817358360).

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

49983396840 is a wasteful number, since it uses less digits than its factorization.

49983396840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2896 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 49983396840 in words is "forty-nine billion, nine hundred eighty-three million, three hundred ninety-six thousand, eight hundred forty".