11105437989 has 8 divisors (see below), whose sum is σ = 14807748960. Its totient is φ = 7403376176.

The previous prime is 11105437939. The next prime is 11105437999. The reversal of 11105437989 is 98973450111.

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

It is a cyclic number.

It is not a de Polignac number, because 11105437989 - 2²⁴ = 11088660773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105437939) 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, 109027 + ... + 184655.

It is an arithmetic number, because the mean of its divisors is an integer number (1850968620).

Almost surely, 2^11105437989 is an apocalyptic number.

It is an amenable number.

11105437989 is a deficient number, since it is larger than the sum of its proper divisors (3702310971).

11105437989 is an equidigital number, since it uses as much as digits as its factorization.

11105437989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124579.

The product of its (nonzero) digits is 272160, while the sum is 48.

The spelling of 11105437989 in words is "eleven billion, one hundred five million, four hundred thirty-seven thousand, nine hundred eighty-nine".