28941857299 has 2 divisors, whose sum is σ = 28941857300. Its totient is φ = 28941857298.

The previous prime is 28941857251. The next prime is 28941857309. The reversal of 28941857299 is 99275814982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28941857299 - 2⁷ = 28941857171 is a prime.

It is a super-2 number, since 2×28941857299² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28941857299.

It is not a weakly prime, because it can be changed into another prime (28941857249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14470928649 + 14470928650.

It is an arithmetic number, because the mean of its divisors is an integer number (14470928650).

Almost surely, 2^28941857299 is an apocalyptic number.

28941857299 is a deficient number, since it is larger than the sum of its proper divisors (1).

28941857299 is an equidigital number, since it uses as much as digits as its factorization.

28941857299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 64.

The spelling of 28941857299 in words is "twenty-eight billion, nine hundred forty-one million, eight hundred fifty-seven thousand, two hundred ninety-nine".