28635672107618 has 8 divisors (see below), whose sum is σ = 42988919136348. Its totient is φ = 14306032395504.

The previous prime is 28635672107573. The next prime is 28635672107639. The reversal of 28635672107618 is 81670127653682.

It can be written as a sum of positive squares in 2 ways, for example, as 28485885305089 + 149786802529 = 5337217^2 + 387023^2 .

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5901826121 + ... + 5901830972.

Almost surely, 2^{28635672107618} is an apocalyptic number.

28635672107618 is a deficient number, since it is larger than the sum of its proper divisors (14353247028730).

28635672107618 is a wasteful number, since it uses less digits than its factorization.

28635672107618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803658308.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 28635672107618 in words is "twenty-eight trillion, six hundred thirty-five billion, six hundred seventy-two million, one hundred seven thousand, six hundred eighteen".