28378525393367 has 2 divisors, whose sum is σ = 28378525393368. Its totient is φ = 28378525393366.

The previous prime is 28378525393333. The next prime is 28378525393423. The reversal of 28378525393367 is 76339352587382.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28378525393367 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28378525393367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28378525393667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14189262696683 + 14189262696684.

It is an arithmetic number, because the mean of its divisors is an integer number (14189262696684).

Almost surely, 2^{28378525393367} is an apocalyptic number.

28378525393367 is a deficient number, since it is larger than the sum of its proper divisors (1).

28378525393367 is an equidigital number, since it uses as much as digits as its factorization.

28378525393367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1371686400, while the sum is 71.

The spelling of 28378525393367 in words is "twenty-eight trillion, three hundred seventy-eight billion, five hundred twenty-five million, three hundred ninety-three thousand, three hundred sixty-seven".