28692044687 has 2 divisors, whose sum is σ = 28692044688. Its totient is φ = 28692044686.

The previous prime is 28692044659. The next prime is 28692044743. The reversal of 28692044687 is 78644029682.

It is an a-pointer prime, because the next prime (28692044743) can be obtained adding 28692044687 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28692044687 - 2¹² = 28692040591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28692044657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14346022343 + 14346022344.

It is an arithmetic number, because the mean of its divisors is an integer number (14346022344).

Almost surely, 2^28692044687 is an apocalyptic number.

28692044687 is a deficient number, since it is larger than the sum of its proper divisors (1).

28692044687 is an equidigital number, since it uses as much as digits as its factorization.

28692044687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 28692044687 in words is "twenty-eight billion, six hundred ninety-two million, forty-four thousand, six hundred eighty-seven".