287728465337 has 4 divisors (see below), whose sum is σ = 294419825040. Its totient is φ = 281037105636.

The previous prime is 287728465313. The next prime is 287728465361. The reversal of 287728465337 is 733564827782.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (287728465313) and next prime (287728465361).

It is a cyclic number.

It is not a de Polignac number, because 287728465337 - 2¹⁸ = 287728203193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287728465337.

It is not an unprimeable number, because it can be changed into a prime (287728465237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345679787 + ... + 3345679872.

It is an arithmetic number, because the mean of its divisors is an integer number (73604956260).

Almost surely, 2^287728465337 is an apocalyptic number.

It is an amenable number.

287728465337 is a deficient number, since it is larger than the sum of its proper divisors (6691359703).

287728465337 is an equidigital number, since it uses as much as digits as its factorization.

287728465337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691359702.

The product of its digits is 94832640, while the sum is 62.

The spelling of 287728465337 in words is "two hundred eighty-seven billion, seven hundred twenty-eight million, four hundred sixty-five thousand, three hundred thirty-seven".