11649681242 has 8 divisors (see below), whose sum is σ = 18394233600. Its totient is φ = 5518270044.

The previous prime is 11649681221. The next prime is 11649681317. The reversal of 11649681242 is 24218694611.

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

It is a junction number, because it is equal to n+sod(n) for n = 11649681193 and 11649681202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153285242 + ... + 153285317.

It is an arithmetic number, because the mean of its divisors is an integer number (2299279200).

Almost surely, 2^11649681242 is an apocalyptic number.

11649681242 is a deficient number, since it is larger than the sum of its proper divisors (6744552358).

11649681242 is a wasteful number, since it uses less digits than its factorization.

11649681242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306570580.

The product of its digits is 165888, while the sum is 44.

The spelling of 11649681242 in words is "eleven billion, six hundred forty-nine million, six hundred eighty-one thousand, two hundred forty-two".