28651836807 has 16 divisors (see below), whose sum is σ = 46305999360. Its totient is φ = 17364749400.

The previous prime is 28651836797. The next prime is 28651836877. The reversal of 28651836807 is 70863815682.

It is not a de Polignac number, because 28651836807 - 2⁶ = 28651836743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28651836877) 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, 48235119 + ... + 48235712.

It is an arithmetic number, because the mean of its divisors is an integer number (2894124960).

Almost surely, 2^28651836807 is an apocalyptic number.

28651836807 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28651836807 is a deficient number, since it is larger than the sum of its proper divisors (17654162553).

28651836807 is a wasteful number, since it uses less digits than its factorization.

28651836807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96470851 (or 96470845 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 28651836807 in words is "twenty-eight billion, six hundred fifty-one million, eight hundred thirty-six thousand, eight hundred seven".