9505049987 has 2 divisors, whose sum is σ = 9505049988. Its totient is φ = 9505049986.

The previous prime is 9505049971. The next prime is 9505050011. The reversal of 9505049987 is 7899405059.

9505049987 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9505049987 - 2⁴ = 9505049971 is a prime.

It is not a weakly prime, because it can be changed into another prime (9505049927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4752524993 + 4752524994.

It is an arithmetic number, because the mean of its divisors is an integer number (4752524994).

Almost surely, 2^9505049987 is an apocalyptic number.

9505049987 is a deficient number, since it is larger than the sum of its proper divisors (1).

9505049987 is an equidigital number, since it uses as much as digits as its factorization.

9505049987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 56.

The square root of 9505049987 is about 97493.8458929588. The cubic root of 9505049987 is about 2118.2870037916.

The spelling of 9505049987 in words is "nine billion, five hundred five million, forty-nine thousand, nine hundred eighty-seven".