287135434146 has 32 divisors (see below), whose sum is σ = 634025242368. Its totient is φ = 85962413840.

The previous prime is 287135434049. The next prime is 287135434151. The reversal of 287135434146 is 641434531782.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 287135434095 and 287135434104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26202576 + ... + 26213531.

It is an arithmetic number, because the mean of its divisors is an integer number (19813288824).

Almost surely, 2^287135434146 is an apocalyptic number.

287135434146 is an abundant number, since it is smaller than the sum of its proper divisors (346889808222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

287135434146 is a wasteful number, since it uses less digits than its factorization.

287135434146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52416206.

The product of its digits is 1935360, while the sum is 48.

The spelling of 287135434146 in words is "two hundred eighty-seven billion, one hundred thirty-five million, four hundred thirty-four thousand, one hundred forty-six".