28874630443 has 2 divisors, whose sum is σ = 28874630444. Its totient is φ = 28874630442.

The previous prime is 28874630387. The next prime is 28874630453. The reversal of 28874630443 is 34403647882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28874630443 - 2¹³ = 28874622251 is a prime.

It is not a weakly prime, because it can be changed into another prime (28874630453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14437315221 + 14437315222.

It is an arithmetic number, because the mean of its divisors is an integer number (14437315222).

Almost surely, 2^28874630443 is an apocalyptic number.

28874630443 is a deficient number, since it is larger than the sum of its proper divisors (1).

28874630443 is an equidigital number, since it uses as much as digits as its factorization.

28874630443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 49.

The spelling of 28874630443 in words is "twenty-eight billion, eight hundred seventy-four million, six hundred thirty thousand, four hundred forty-three".