48581443931 has 2 divisors, whose sum is σ = 48581443932. Its totient is φ = 48581443930.

The previous prime is 48581443913. The next prime is 48581443987. The reversal of 48581443931 is 13934418584.

It is a happy number.

Together with previous prime (48581443913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48581443931 is a prime.

It is a super-2 number, since 2×48581443931² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48581443931.

It is not a weakly prime, because it can be changed into another prime (48581443231) 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 as a sum of consecutive naturals, namely, 24290721965 + 24290721966.

It is an arithmetic number, because the mean of its divisors is an integer number (24290721966).

Almost surely, 2^48581443931 is an apocalyptic number.

48581443931 is a deficient number, since it is larger than the sum of its proper divisors (1).

48581443931 is an equidigital number, since it uses as much as digits as its factorization.

48581443931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 50.

The spelling of 48581443931 in words is "forty-eight billion, five hundred eighty-one million, four hundred forty-three thousand, nine hundred thirty-one".