28798346519 has 4 divisors (see below), whose sum is σ = 29411077344. Its totient is φ = 28185615696.

The previous prime is 28798346513. The next prime is 28798346597. The reversal of 28798346519 is 91564389782.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28798346519 - 2²⁰ = 28797297943 is a prime.

It is a super-2 number, since 2×28798346519² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798346513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306365342 + ... + 306365435.

It is an arithmetic number, because the mean of its divisors is an integer number (7352769336).

Almost surely, 2^28798346519 is an apocalyptic number.

28798346519 is a deficient number, since it is larger than the sum of its proper divisors (612730825).

28798346519 is an equidigital number, since it uses as much as digits as its factorization.

28798346519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612730824.

The product of its digits is 26127360, while the sum is 62.

The spelling of 28798346519 in words is "twenty-eight billion, seven hundred ninety-eight million, three hundred forty-six thousand, five hundred nineteen".