28015815119 has 2 divisors, whose sum is σ = 28015815120. Its totient is φ = 28015815118.

The previous prime is 28015815089. The next prime is 28015815169. The reversal of 28015815119 is 91151851082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28015815119 - 2¹² = 28015811023 is a prime.

It is a super-2 number, since 2×28015815119² (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 (28015815169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14007907559 + 14007907560.

It is an arithmetic number, because the mean of its divisors is an integer number (14007907560).

Almost surely, 2^28015815119 is an apocalyptic number.

28015815119 is a deficient number, since it is larger than the sum of its proper divisors (1).

28015815119 is an equidigital number, since it uses as much as digits as its factorization.

28015815119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 41.

The spelling of 28015815119 in words is "twenty-eight billion, fifteen million, eight hundred fifteen thousand, one hundred nineteen".