28714253819 has 4 divisors (see below), whose sum is σ = 28759760400. Its totient is φ = 28668747240.

The previous prime is 28714253809. The next prime is 28714253831. The reversal of 28714253819 is 91835241782.

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 28714253819 - 2²⁰ = 28713205243 is a prime.

It is a super-2 number, since 2×28714253819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28714253809) 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, 22752344 + ... + 22753605.

It is an arithmetic number, because the mean of its divisors is an integer number (7189940100).

Almost surely, 2^28714253819 is an apocalyptic number.

28714253819 is a deficient number, since it is larger than the sum of its proper divisors (45506581).

28714253819 is an equidigital number, since it uses as much as digits as its factorization.

28714253819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45506580.

The product of its digits is 967680, while the sum is 50.

The spelling of 28714253819 in words is "twenty-eight billion, seven hundred fourteen million, two hundred fifty-three thousand, eight hundred nineteen".