28618874318603 has 4 divisors (see below), whose sum is σ = 29103939985080. Its totient is φ = 28133808652128.

The previous prime is 28618874318581. The next prime is 28618874318677. The reversal of 28618874318603 is 30681347881682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28618874318603 - 2²⁶ = 28618807209739 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 28618874318603.

It is not an unprimeable number, because it can be changed into a prime (28618874311603) 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, 242532833150 + ... + 242532833267.

It is an arithmetic number, because the mean of its divisors is an integer number (7275984996270).

Almost surely, 2^{28618874318603} is an apocalyptic number.

28618874318603 is a deficient number, since it is larger than the sum of its proper divisors (485065666477).

28618874318603 is an equidigital number, since it uses as much as digits as its factorization.

28618874318603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485065666476.

The product of its (nonzero) digits is 74317824, while the sum is 65.

The spelling of 28618874318603 in words is "twenty-eight trillion, six hundred eighteen billion, eight hundred seventy-four million, three hundred eighteen thousand, six hundred three".