287828365645 has 8 divisors (see below), whose sum is σ = 345406520160. Its totient is φ = 230254371600.

The previous prime is 287828365589. The next prime is 287828365663. The reversal of 287828365645 is 546563828782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 287828365645 - 2²³ = 287819977037 is a prime.

It is a super-3 number, since 3×287828365645³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885835 + ... + 1166344.

It is an arithmetic number, because the mean of its divisors is an integer number (43175815020).

Almost surely, 2^287828365645 is an apocalyptic number.

It is an amenable number.

287828365645 is a deficient number, since it is larger than the sum of its proper divisors (57578154515).

287828365645 is a wasteful number, since it uses less digits than its factorization.

287828365645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080235.

The product of its digits is 154828800, while the sum is 64.

The spelling of 287828365645 in words is "two hundred eighty-seven billion, eight hundred twenty-eight million, three hundred sixty-five thousand, six hundred forty-five".