28329000645237 has 8 divisors (see below), whose sum is σ = 39993883263936. Its totient is φ = 17775059228352.

The previous prime is 28329000645229. The next prime is 28329000645247. The reversal of 28329000645237 is 73254600092382.

It is a happy number.

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

It is not a de Polignac number, because 28329000645237 - 2³ = 28329000645229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 555470600887 = 28329000645237 / (2 + 8 + 3 + 2 + 9 + 0 + 0 + 0 + 6 + 4 + 5 + 2 + 3 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 28329000645237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28329000645247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277735300393 + ... + 277735300494.

It is an arithmetic number, because the mean of its divisors is an integer number (4999235407992).

Almost surely, 2^{28329000645237} is an apocalyptic number.

It is an amenable number.

28329000645237 is a deficient number, since it is larger than the sum of its proper divisors (11664882618699).

28329000645237 is a wasteful number, since it uses less digits than its factorization.

28329000645237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555470600907.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 28329000645237 in words is "twenty-eight trillion, three hundred twenty-nine billion, six hundred forty-five thousand, two hundred thirty-seven".