28078574143 has 2 divisors, whose sum is σ = 28078574144. Its totient is φ = 28078574142.

The previous prime is 28078574119. The next prime is 28078574149. The reversal of 28078574143 is 34147587082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28078574143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28078574149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14039287071 + 14039287072.

It is an arithmetic number, because the mean of its divisors is an integer number (14039287072).

Almost surely, 2^28078574143 is an apocalyptic number.

28078574143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28078574143 is an equidigital number, since it uses as much as digits as its factorization.

28078574143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 28078574143 in words is "twenty-eight billion, seventy-eight million, five hundred seventy-four thousand, one hundred forty-three".