28073378843 has 2 divisors, whose sum is σ = 28073378844. Its totient is φ = 28073378842.

The previous prime is 28073378833. The next prime is 28073378849. The reversal of 28073378843 is 34887337082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28073378843 - 2¹⁴ = 28073362459 is a prime.

It is a super-2 number, since 2×28073378843² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28073378849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14036689421 + 14036689422.

It is an arithmetic number, because the mean of its divisors is an integer number (14036689422).

Almost surely, 2^28073378843 is an apocalyptic number.

28073378843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28073378843 is an equidigital number, since it uses as much as digits as its factorization.

28073378843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 28073378843 in words is "twenty-eight billion, seventy-three million, three hundred seventy-eight thousand, eight hundred forty-three".