48401845021 has 4 divisors (see below), whose sum is σ = 48900833212. Its totient is φ = 47902856832.

The previous prime is 48401845007. The next prime is 48401845067. The reversal of 48401845021 is 12054810484.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40348756900 + 8053088121 = 200870^2 + 89739^2 .

It is a cyclic number.

It is not a de Polignac number, because 48401845021 - 2⁷ = 48401844893 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 (48401849021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249493950 + ... + 249494143.

It is an arithmetic number, because the mean of its divisors is an integer number (12225208303).

Almost surely, 2^48401845021 is an apocalyptic number.

It is an amenable number.

48401845021 is a deficient number, since it is larger than the sum of its proper divisors (498988191).

48401845021 is an equidigital number, since it uses as much as digits as its factorization.

48401845021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498988190.

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 48401845021 in words is "forty-eight billion, four hundred one million, eight hundred forty-five thousand, twenty-one".