28371696791 has 2 divisors, whose sum is σ = 28371696792. Its totient is φ = 28371696790.

The previous prime is 28371696767. The next prime is 28371696799. The reversal of 28371696791 is 19769617382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28371696791 - 2¹⁰ = 28371695767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28371696791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28371696799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14185848395 + 14185848396.

It is an arithmetic number, because the mean of its divisors is an integer number (14185848396).

Almost surely, 2^28371696791 is an apocalyptic number.

28371696791 is a deficient number, since it is larger than the sum of its proper divisors (1).

28371696791 is an equidigital number, since it uses as much as digits as its factorization.

28371696791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 59.

The spelling of 28371696791 in words is "twenty-eight billion, three hundred seventy-one million, six hundred ninety-six thousand, seven hundred ninety-one".