11187861610 has 8 divisors (see below), whose sum is σ = 20138150916. Its totient is φ = 4475144640.

The previous prime is 11187861589. The next prime is 11187861611. The reversal of 11187861610 is 1616878111.

11187861610 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10591085569 + 596776041 = 102913^2 + 24429^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11187861611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559393071 + ... + 559393090.

Almost surely, 2^11187861610 is an apocalyptic number.

11187861610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11187861610 is a deficient number, since it is larger than the sum of its proper divisors (8950289306).

11187861610 is a wasteful number, since it uses less digits than its factorization.

11187861610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118786168.

The product of its (nonzero) digits is 16128, while the sum is 40.

The spelling of 11187861610 in words is "eleven billion, one hundred eighty-seven million, eight hundred sixty-one thousand, six hundred ten".