48509773920 has 144 divisors (see below), whose sum is σ = 165824502480. Its totient is φ = 12913677312.

The previous prime is 48509773913. The next prime is 48509773933. The reversal of 48509773920 is 2937790584.

48509773920 is a `hidden beast` number, since 48 + 509 + 7 + 7 + 3 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×48509773920³ (a number of 33 digits) contains 333 as substring.

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, 816586 + ... + 873974.

It is an arithmetic number, because the mean of its divisors is an integer number (1151559045).

Almost surely, 2^48509773920 is an apocalyptic number.

48509773920 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 48509773920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82912251240).

48509773920 is an abundant number, since it is smaller than the sum of its proper divisors (117314728560).

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

48509773920 is a wasteful number, since it uses less digits than its factorization.

48509773920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57997 (or 57986 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 48509773920 in words is "forty-eight billion, five hundred nine million, seven hundred seventy-three thousand, nine hundred twenty".