28132511603 has 16 divisors (see below), whose sum is σ = 33329664000. Its totient is φ = 23233392672.

The previous prime is 28132511599. The next prime is 28132511653. The reversal of 28132511603 is 30611523182.

It is not a de Polignac number, because 28132511603 - 2² = 28132511599 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 28132511603.

It is not an unprimeable number, because it can be changed into a prime (28132511653) 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, 47423 + ... + 241896.

It is an arithmetic number, because the mean of its divisors is an integer number (2083104000).

Almost surely, 2^28132511603 is an apocalyptic number.

28132511603 is a deficient number, since it is larger than the sum of its proper divisors (5197152397).

28132511603 is a wasteful number, since it uses less digits than its factorization.

28132511603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289834.

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 28132511603 in words is "twenty-eight billion, one hundred thirty-two million, five hundred eleven thousand, six hundred three".