65087317449 has 96 divisors (see below), whose sum is σ = 124037222400. Its totient is φ = 33811117200.

The previous prime is 65087317447. The next prime is 65087317483. The reversal of 65087317449 is 94471378056.

65087317449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65087317449 - 2¹ = 65087317447 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65087317395 and 65087317404.

It is not an unprimeable number, because it can be changed into a prime (65087317447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 881344 + ... + 952334.

It is an arithmetic number, because the mean of its divisors is an integer number (1292054400).

Almost surely, 2^65087317449 is an apocalyptic number.

It is an amenable number.

65087317449 is a deficient number, since it is larger than the sum of its proper divisors (58949904951).

65087317449 is an equidigital number, since it uses as much as digits as its factorization.

65087317449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71038 (or 71012 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 65087317449 in words is "sixty-five billion, eighty-seven million, three hundred seventeen thousand, four hundred forty-nine".