11528502427 has 12 divisors (see below), whose sum is σ = 12483612400. Its totient is φ = 10583202960.

The previous prime is 11528502421. The next prime is 11528502431. The reversal of 11528502427 is 72420582511.

It is a happy number.

It is not a de Polignac number, because 11528502427 - 2²³ = 11520113819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11528502421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5460102 + ... + 5462212.

Almost surely, 2^11528502427 is an apocalyptic number.

11528502427 is a deficient number, since it is larger than the sum of its proper divisors (955109973).

11528502427 is an frugal number, since it uses more digits than its factorization.

11528502427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 2323 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 11528502427 in words is "eleven billion, five hundred twenty-eight million, five hundred two thousand, four hundred twenty-seven".