11287509824 has 28 divisors (see below), whose sum is σ = 22604158500. Its totient is φ = 5591973888.

The previous prime is 11287509811. The next prime is 11287509853. The reversal of 11287509824 is 42890578211.

It can be written as a sum of positive squares in 2 ways, for example, as 2984655424 + 8302854400 = 54632^2 + 91120^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802049 + ... + 816000.

It is an arithmetic number, because the mean of its divisors is an integer number (807291375).

Almost surely, 2^11287509824 is an apocalyptic number.

It is an amenable number.

11287509824 is an abundant number, since it is smaller than the sum of its proper divisors (11316648676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11287509824 is a wasteful number, since it uses less digits than its factorization.

11287509824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618170 (or 1618160 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 11287509824 in words is "eleven billion, two hundred eighty-seven million, five hundred nine thousand, eight hundred twenty-four".