48400000081 has 8 divisors (see below), whose sum is σ = 48925260104. Its totient is φ = 47875276800.

The previous prime is 48400000063. The next prime is 48400000133. The reversal of 48400000081 is 18000000484.

It can be written as a sum of positive squares in 4 ways, for example, as 81 + 48400000000 = 9^2 + 220000^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 48400000081 - 2⁵ = 48400000049 is a prime.

It is a super-2 number, since 2×48400000081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48400000031) 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, 48481 + ... + 314881.

It is an arithmetic number, because the mean of its divisors is an integer number (6115657513).

Almost surely, 2^48400000081 is an apocalyptic number.

It is an amenable number.

48400000081 is a deficient number, since it is larger than the sum of its proper divisors (525260023).

48400000081 is a wasteful number, since it uses less digits than its factorization.

48400000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268371.

The product of its (nonzero) digits is 1024, while the sum is 25.

It can be divided in two parts, 484000000 and 81, that multiplied together give a square (39204000000 = 198000²).

The spelling of 48400000081 in words is "forty-eight billion, four hundred million, eighty-one", and thus it is an aban number.