48187321021 has 8 divisors (see below), whose sum is σ = 55150927424. Its totient is φ = 41243640480.

The previous prime is 48187321009. The next prime is 48187321037. The reversal of 48187321021 is 12012378184.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48187321021 - 2⁵ = 48187320989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48187321001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4976280 + ... + 4985953.

It is an arithmetic number, because the mean of its divisors is an integer number (6893865928).

Almost surely, 2^48187321021 is an apocalyptic number.

It is an amenable number.

48187321021 is a deficient number, since it is larger than the sum of its proper divisors (6963606403).

48187321021 is an equidigital number, since it uses as much as digits as its factorization.

48187321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9962931.

The product of its (nonzero) digits is 21504, while the sum is 37.

The spelling of 48187321021 in words is "forty-eight billion, one hundred eighty-seven million, three hundred twenty-one thousand, twenty-one".