11887569406 has 8 divisors (see below), whose sum is σ = 17860162680. Its totient is φ = 5934181848.

The previous prime is 11887569371. The next prime is 11887569409. The reversal of 11887569406 is 60496578811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887569409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4799881 + ... + 4802356.

It is an arithmetic number, because the mean of its divisors is an integer number (2232520335).

Almost surely, 2^11887569406 is an apocalyptic number.

11887569406 is a deficient number, since it is larger than the sum of its proper divisors (5972593274).

11887569406 is an equidigital number, since it uses as much as digits as its factorization.

11887569406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9602858.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 11887569406 in words is "eleven billion, eight hundred eighty-seven million, five hundred sixty-nine thousand, four hundred six".