28635265219 has 16 divisors (see below), whose sum is σ = 32688113760. Its totient is φ = 24850575360.

The previous prime is 28635265193. The next prime is 28635265247. The reversal of 28635265219 is 91256253682.

It is a cyclic number.

It is not a de Polignac number, because 28635265219 - 2⁷ = 28635265091 is a prime.

It is a super-2 number, since 2×28635265219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28635265249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642174 + ... + 685315.

It is an arithmetic number, because the mean of its divisors is an integer number (2043007110).

Almost surely, 2^28635265219 is an apocalyptic number.

28635265219 is a deficient number, since it is larger than the sum of its proper divisors (4052848541).

28635265219 is a wasteful number, since it uses less digits than its factorization.

28635265219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327590.

The product of its digits is 1555200, while the sum is 49.

The spelling of 28635265219 in words is "twenty-eight billion, six hundred thirty-five million, two hundred sixty-five thousand, two hundred nineteen".