28180011003 has 16 divisors (see below), whose sum is σ = 39833650176. Its totient is φ = 17689281120.

The previous prime is 28180010959. The next prime is 28180011011. The reversal of 28180011003 is 30011008182.

It is not a de Polignac number, because 28180011003 - 2¹³ = 28180002811 is a prime.

It is a super-2 number, since 2×28180011003² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28180011403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4091301 + ... + 4098182.

It is an arithmetic number, because the mean of its divisors is an integer number (2489603136).

Almost surely, 2^28180011003 is an apocalyptic number.

28180011003 is a deficient number, since it is larger than the sum of its proper divisors (11653639173).

28180011003 is a wasteful number, since it uses less digits than its factorization.

28180011003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189554.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 28180011003 its reverse (30011008182), we get a palindrome (58191019185).

The spelling of 28180011003 in words is "twenty-eight billion, one hundred eighty million, eleven thousand, three".