28400253719 has 2 divisors, whose sum is σ = 28400253720. Its totient is φ = 28400253718.

The previous prime is 28400253653. The next prime is 28400253751. The reversal of 28400253719 is 91735200482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28400253719 - 2⁸ = 28400253463 is a prime.

It is a super-2 number, since 2×28400253719² (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 (28400253769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14200126859 + 14200126860.

It is an arithmetic number, because the mean of its divisors is an integer number (14200126860).

Almost surely, 2^28400253719 is an apocalyptic number.

28400253719 is a deficient number, since it is larger than the sum of its proper divisors (1).

28400253719 is an equidigital number, since it uses as much as digits as its factorization.

28400253719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 28400253719 in words is "twenty-eight billion, four hundred million, two hundred fifty-three thousand, seven hundred nineteen".