11641287144 has 32 divisors (see below), whose sum is σ = 29780039520. Its totient is φ = 3790186176.

The previous prime is 11641287143. The next prime is 11641287173. The reversal of 11641287144 is 44178214611.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11641287143) 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, 5639127 + ... + 5641190.

It is an arithmetic number, because the mean of its divisors is an integer number (930626235).

Almost surely, 2^11641287144 is an apocalyptic number.

It is an amenable number.

11641287144 is an abundant number, since it is smaller than the sum of its proper divisors (18138752376).

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

11641287144 is a wasteful number, since it uses less digits than its factorization.

11641287144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280369 (or 11280365 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The spelling of 11641287144 in words is "eleven billion, six hundred forty-one million, two hundred eighty-seven thousand, one hundred forty-four".