28162418313405 has 16 divisors (see below), whose sum is σ = 47710449849024. Its totient is φ = 14136429584640.

The previous prime is 28162418313401. The next prime is 28162418313413. The reversal of 28162418313405 is 50431381426182.

It is not a de Polignac number, because 28162418313405 - 2² = 28162418313401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28162418313401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55220427811 + ... + 55220428320.

It is an arithmetic number, because the mean of its divisors is an integer number (2981903115564).

Almost surely, 2^{28162418313405} is an apocalyptic number.

It is an amenable number.

28162418313405 is a deficient number, since it is larger than the sum of its proper divisors (19548031535619).

28162418313405 is a wasteful number, since it uses less digits than its factorization.

28162418313405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110440856156.

The product of its (nonzero) digits is 1105920, while the sum is 48.

Adding to 28162418313405 its reverse (50431381426182), we get a palindrome (78593799739587).

The spelling of 28162418313405 in words is "twenty-eight trillion, one hundred sixty-two billion, four hundred eighteen million, three hundred thirteen thousand, four hundred five".