48581443961 has 4 divisors (see below), whose sum is σ = 48596719524. Its totient is φ = 48566168400.

The previous prime is 48581443931. The next prime is 48581443987. The reversal of 48581443961 is 16934418584.

It is a happy number.

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 7840039936 + 40741404025 = 88544^2 + 201845^2 .

It is a cyclic number.

It is not a de Polignac number, because 48581443961 - 2¹⁰ = 48581442937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48581443931) 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, 7633010 + ... + 7639371.

It is an arithmetic number, because the mean of its divisors is an integer number (12149179881).

Almost surely, 2^48581443961 is an apocalyptic number.

It is an amenable number.

48581443961 is a deficient number, since it is larger than the sum of its proper divisors (15275563).

48581443961 is a wasteful number, since it uses less digits than its factorization.

48581443961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15275562.

The product of its digits is 3317760, while the sum is 53.

The spelling of 48581443961 in words is "forty-eight billion, five hundred eighty-one million, four hundred forty-three thousand, nine hundred sixty-one".