28063140215 has 8 divisors (see below), whose sum is σ = 36737201808. Its totient is φ = 20409556480.

The previous prime is 28063140211. The next prime is 28063140223. The reversal of 28063140215 is 51204136082.

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

It is not a de Polignac number, because 28063140215 - 2² = 28063140211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28063140211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 255119402 + ... + 255119511.

It is an arithmetic number, because the mean of its divisors is an integer number (4592150226).

Almost surely, 2^28063140215 is an apocalyptic number.

28063140215 is a deficient number, since it is larger than the sum of its proper divisors (8674061593).

28063140215 is a wasteful number, since it uses less digits than its factorization.

28063140215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510238929.

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 28063140215 its reverse (51204136082), we get a palindrome (79267276297).

The spelling of 28063140215 in words is "twenty-eight billion, sixty-three million, one hundred forty thousand, two hundred fifteen".