11528565087 has 8 divisors (see below), whose sum is σ = 16553837104. Its totient is φ = 7094501568.

The previous prime is 11528565073. The next prime is 11528565101. The reversal of 11528565087 is 78056582511.

It is an interprime number because it is at equal distance from previous prime (11528565073) and next prime (11528565101).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11528565087 - 2¹² = 11528560991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11528565007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147802078 + ... + 147802155.

It is an arithmetic number, because the mean of its divisors is an integer number (2069229638).

Almost surely, 2^11528565087 is an apocalyptic number.

11528565087 is a deficient number, since it is larger than the sum of its proper divisors (5025272017).

11528565087 is a wasteful number, since it uses less digits than its factorization.

11528565087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295604249.

The product of its (nonzero) digits is 672000, while the sum is 48.

The spelling of 11528565087 in words is "eleven billion, five hundred twenty-eight million, five hundred sixty-five thousand, eighty-seven".