28431698367799 has 2 divisors, whose sum is σ = 28431698367800. Its totient is φ = 28431698367798.

The previous prime is 28431698367701. The next prime is 28431698367803. The reversal of 28431698367799 is 99776389613482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28431698367799 - 2⁷ = 28431698367671 is a prime.

It is a super-2 number, since 2×28431698367799² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28431698364799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14215849183899 + 14215849183900.

It is an arithmetic number, because the mean of its divisors is an integer number (14215849183900).

Almost surely, 2^{28431698367799} is an apocalyptic number.

28431698367799 is a deficient number, since it is larger than the sum of its proper divisors (1).

28431698367799 is an equidigital number, since it uses as much as digits as its factorization.

28431698367799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5925685248, while the sum is 82.

The spelling of 28431698367799 in words is "twenty-eight trillion, four hundred thirty-one billion, six hundred ninety-eight million, three hundred sixty-seven thousand, seven hundred ninety-nine".