28287655519 has 2 divisors, whose sum is σ = 28287655520. Its totient is φ = 28287655518.

The previous prime is 28287655511. The next prime is 28287655523. The reversal of 28287655519 is 91555678282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28287655519 - 2³ = 28287655511 is a prime.

It is a super-2 number, since 2×28287655519² (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 (28287655511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14143827759 + 14143827760.

It is an arithmetic number, because the mean of its divisors is an integer number (14143827760).

Almost surely, 2^28287655519 is an apocalyptic number.

28287655519 is a deficient number, since it is larger than the sum of its proper divisors (1).

28287655519 is an equidigital number, since it uses as much as digits as its factorization.

28287655519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096000, while the sum is 58.

The spelling of 28287655519 in words is "twenty-eight billion, two hundred eighty-seven million, six hundred fifty-five thousand, five hundred nineteen".