28552731919 has 2 divisors, whose sum is σ = 28552731920. Its totient is φ = 28552731918.

The previous prime is 28552731899. The next prime is 28552731937. The reversal of 28552731919 is 91913725582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28552731919 - 2⁵ = 28552731887 is a prime.

It is a super-2 number, since 2×28552731919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28552731959) 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, 14276365959 + 14276365960.

It is an arithmetic number, because the mean of its divisors is an integer number (14276365960).

Almost surely, 2^28552731919 is an apocalyptic number.

28552731919 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552731919 is an equidigital number, since it uses as much as digits as its factorization.

28552731919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 52.

The spelling of 28552731919 in words is "twenty-eight billion, five hundred fifty-two million, seven hundred thirty-one thousand, nine hundred nineteen".