28930943399 has 2 divisors, whose sum is σ = 28930943400. Its totient is φ = 28930943398.

The previous prime is 28930943359. The next prime is 28930943401. The reversal of 28930943399 is 99334903982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28930943399 is a prime.

It is a super-2 number, since 2×28930943399² (a number of 22 digits) contains 22 as substring.

Together with 28930943401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28930943329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14465471699 + 14465471700.

It is an arithmetic number, because the mean of its divisors is an integer number (14465471700).

Almost surely, 2^28930943399 is an apocalyptic number.

28930943399 is a deficient number, since it is larger than the sum of its proper divisors (1).

28930943399 is an equidigital number, since it uses as much as digits as its factorization.

28930943399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11337408, while the sum is 59.

The spelling of 28930943399 in words is "twenty-eight billion, nine hundred thirty million, nine hundred forty-three thousand, three hundred ninety-nine".