28418313155 has 8 divisors (see below), whose sum is σ = 34290385584. Its totient is φ = 22609044000.

The previous prime is 28418313103. The next prime is 28418313181. The reversal of 28418313155 is 55131381482.

It is a happy number.

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

It is not a de Polignac number, because 28418313155 - 2²² = 28414118851 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15699821 + ... + 15701630.

It is an arithmetic number, because the mean of its divisors is an integer number (4286298198).

Almost surely, 2^28418313155 is an apocalyptic number.

28418313155 is a deficient number, since it is larger than the sum of its proper divisors (5872072429).

28418313155 is a wasteful number, since it uses less digits than its factorization.

28418313155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31401637.

The product of its digits is 115200, while the sum is 41.

The spelling of 28418313155 in words is "twenty-eight billion, four hundred eighteen million, three hundred thirteen thousand, one hundred fifty-five".