48581443987 has 2 divisors, whose sum is σ = 48581443988. Its totient is φ = 48581443986.

The previous prime is 48581443931. The next prime is 48581443997. The reversal of 48581443987 is 78934418584.

48581443987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48581443987 is a prime.

It is not a weakly prime, because it can be changed into another prime (48581443997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24290721993 + 24290721994.

It is an arithmetic number, because the mean of its divisors is an integer number (24290721994).

Almost surely, 2^48581443987 is an apocalyptic number.

48581443987 is a deficient number, since it is larger than the sum of its proper divisors (1).

48581443987 is an equidigital number, since it uses as much as digits as its factorization.

48581443987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30965760, while the sum is 61.

The spelling of 48581443987 in words is "forty-eight billion, five hundred eighty-one million, four hundred forty-three thousand, nine hundred eighty-seven".