11187157460 has 24 divisors (see below), whose sum is σ = 23642674440. Its totient is φ = 4446359424.

The previous prime is 11187157439. The next prime is 11187157477. The reversal of 11187157460 is 6475178111.

It can be written as a sum of positive squares in 4 ways, for example, as 743543824 + 10443613636 = 27268^2 + 102194^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1778255 + ... + 1784534.

It is an arithmetic number, because the mean of its divisors is an integer number (985111435).

Almost surely, 2^11187157460 is an apocalyptic number.

11187157460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11187157460 is an abundant number, since it is smaller than the sum of its proper divisors (12455516980).

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

11187157460 is a wasteful number, since it uses less digits than its factorization.

11187157460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562955 (or 3562953 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 41.

The spelling of 11187157460 in words is "eleven billion, one hundred eighty-seven million, one hundred fifty-seven thousand, four hundred sixty".