49908555648 has 480 divisors, whose sum is σ = 178406078400. Its totient is φ = 13795246080.

The previous prime is 49908555637. The next prime is 49908555773. The reversal of 49908555648 is 84655580994.

49908555648 is a `hidden beast` number, since 499 + 0 + 8 + 55 + 56 + 48 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

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 59 ways as a sum of consecutive naturals, for example, 15747408 + ... + 15750576.

It is an arithmetic number, because the mean of its divisors is an integer number (371679330).

Almost surely, 2^49908555648 is an apocalyptic number.

49908555648 is a gapful number since it is divisible by the number (48) 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 49908555648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89203039200).

49908555648 is an abundant number, since it is smaller than the sum of its proper divisors (128497522752).

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

49908555648 is a wasteful number, since it uses less digits than its factorization.

49908555648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240 (or 3212 counting only the distinct ones).

The product of its (nonzero) digits is 62208000, while the sum is 63.

The spelling of 49908555648 in words is "forty-nine billion, nine hundred eight million, five hundred fifty-five thousand, six hundred forty-eight".