28825813711 has 4 divisors (see below), whose sum is σ = 28826674272. Its totient is φ = 28824953152.

The previous prime is 28825813633. The next prime is 28825813747. The reversal of 28825813711 is 11731852882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11731852882 = 2 ⋅5865926441.

It is a cyclic number.

It is not a de Polignac number, because 28825813711 - 2¹⁵ = 28825780943 is a prime.

It is a super-2 number, since 2×28825813711² (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 (28825813811) 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, 377911 + ... + 447736.

It is an arithmetic number, because the mean of its divisors is an integer number (7206668568).

Almost surely, 2^28825813711 is an apocalyptic number.

28825813711 is a deficient number, since it is larger than the sum of its proper divisors (860561).

28825813711 is an equidigital number, since it uses as much as digits as its factorization.

28825813711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860560.

The product of its digits is 215040, while the sum is 46.

The spelling of 28825813711 in words is "twenty-eight billion, eight hundred twenty-five million, eight hundred thirteen thousand, seven hundred eleven".