28174525623143 has 2 divisors, whose sum is σ = 28174525623144. Its totient is φ = 28174525623142.

The previous prime is 28174525623119. The next prime is 28174525623151. The reversal of 28174525623143 is 34132652547182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28174525623143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28174525623113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14087262811571 + 14087262811572.

It is an arithmetic number, because the mean of its divisors is an integer number (14087262811572).

Almost surely, 2^{28174525623143} is an apocalyptic number.

28174525623143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28174525623143 is an equidigital number, since it uses as much as digits as its factorization.

28174525623143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 53.

The spelling of 28174525623143 in words is "twenty-eight trillion, one hundred seventy-four billion, five hundred twenty-five million, six hundred twenty-three thousand, one hundred forty-three".