287649050513 has 16 divisors (see below), whose sum is σ = 320853790656. Its totient is φ = 255685079040.

The previous prime is 287649050489. The next prime is 287649050527. The reversal of 287649050513 is 315050946782.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 287649050513 - 2¹⁶ = 287648984977 is a prime.

It is a super-2 number, since 2×287649050513² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (287649050573) 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 15 ways as a sum of consecutive naturals, for example, 1535456 + ... + 1712577.

It is an arithmetic number, because the mean of its divisors is an integer number (20053361916).

It is a 1-persistent number, because it is pandigital, but 2⋅287649050513 = 575298101026 is not.

Almost surely, 2^287649050513 is an apocalyptic number.

It is an amenable number.

287649050513 is a deficient number, since it is larger than the sum of its proper divisors (33204740143).

287649050513 is a wasteful number, since it uses less digits than its factorization.

287649050513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248224.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 287649050513 in words is "two hundred eighty-seven billion, six hundred forty-nine million, fifty thousand, five hundred thirteen".