28813607511 has 96 divisors (see below), whose sum is σ = 43638912000. Its totient is φ = 16892688384.

The previous prime is 28813607497. The next prime is 28813607519. The reversal of 28813607511 is 11570631882.

It is not a de Polignac number, because 28813607511 - 2⁹ = 28813606999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28813607519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 210318235 + ... + 210318371.

It is an arithmetic number, because the mean of its divisors is an integer number (454572000).

Almost surely, 2^28813607511 is an apocalyptic number.

28813607511 is a deficient number, since it is larger than the sum of its proper divisors (14825304489).

28813607511 is a wasteful number, since it uses less digits than its factorization.

28813607511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 28813607511 in words is "twenty-eight billion, eight hundred thirteen million, six hundred seven thousand, five hundred eleven".