10881209918 has 16 divisors (see below), whose sum is σ = 16448786640. Its totient is φ = 5398427136.

The previous prime is 10881209903. The next prime is 10881209923. The reversal of 10881209918 is 81990218801.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113921 + ... + 186387.

It is an arithmetic number, because the mean of its divisors is an integer number (1028049165).

Almost surely, 2^10881209918 is an apocalyptic number.

10881209918 is a deficient number, since it is larger than the sum of its proper divisors (5567576722).

10881209918 is a wasteful number, since it uses less digits than its factorization.

10881209918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73051.

The product of its (nonzero) digits is 82944, while the sum is 47.

The spelling of 10881209918 in words is "ten billion, eight hundred eighty-one million, two hundred nine thousand, nine hundred eighteen".