49908731904 has 312 divisors, whose sum is σ = 153274185792. Its totient is φ = 16217210880.

The previous prime is 49908731843. The next prime is 49908731921. The reversal of 49908731904 is 40913780994.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40807837 + ... + 40809059.

It is an arithmetic number, because the mean of its divisors is an integer number (491263416).

Almost surely, 2^49908731904 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 49908731904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76637092896).

49908731904 is an abundant number, since it is smaller than the sum of its proper divisors (103365453888).

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

49908731904 is an equidigital number, since it uses as much as digits as its factorization.

49908731904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303 (or 1269 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 49908731904 in words is "forty-nine billion, nine hundred eight million, seven hundred thirty-one thousand, nine hundred four".