28040523711 has 4 divisors (see below), whose sum is σ = 37387364952. Its totient is φ = 18693682472.

The previous prime is 28040523677. The next prime is 28040523769. The reversal of 28040523711 is 11732504082.

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 28040523711 - 2¹⁵ = 28040490943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28040523211) 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, 4673420616 + ... + 4673420621.

It is an arithmetic number, because the mean of its divisors is an integer number (9346841238).

Almost surely, 2^28040523711 is an apocalyptic number.

28040523711 is a deficient number, since it is larger than the sum of its proper divisors (9346841241).

28040523711 is an equidigital number, since it uses as much as digits as its factorization.

28040523711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346841240.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 28040523711 in words is "twenty-eight billion, forty million, five hundred twenty-three thousand, seven hundred eleven".