48491089920 has 1248 divisors, whose sum is σ = 214669728000. Its totient is φ = 10057678848.

The previous prime is 48491089909. The next prime is 48491089939. The reversal of 48491089920 is 2998019484.

48491089920 is a `hidden beast` number, since 48 + 491 + 0 + 8 + 99 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1248).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 821882851 + ... + 821882909.

It is an arithmetic number, because the mean of its divisors is an integer number (172011000).

Almost surely, 2^48491089920 is an apocalyptic number.

48491089920 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 48491089920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107334864000).

48491089920 is an abundant number, since it is smaller than the sum of its proper divisors (166178638080).

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

48491089920 is a wasteful number, since it uses less digits than its factorization.

48491089920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 48491089920 in words is "forty-eight billion, four hundred ninety-one million, eighty-nine thousand, nine hundred twenty".