28319607851 has 2 divisors, whose sum is σ = 28319607852. Its totient is φ = 28319607850.

The previous prime is 28319607839. The next prime is 28319607853. The reversal of 28319607851 is 15870691382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28319607851 - 2¹⁰ = 28319606827 is a prime.

Together with 28319607853, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28319607851.

It is not a weakly prime, because it can be changed into another prime (28319607853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14159803925 + 14159803926.

It is an arithmetic number, because the mean of its divisors is an integer number (14159803926).

Almost surely, 2^28319607851 is an apocalyptic number.

28319607851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28319607851 is an equidigital number, since it uses as much as digits as its factorization.

28319607851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 28319607851 in words is "twenty-eight billion, three hundred nineteen million, six hundred seven thousand, eight hundred fifty-one".