11439267838 has 8 divisors (see below), whose sum is σ = 17160574032. Its totient is φ = 5719076496.

The previous prime is 11439267821. The next prime is 11439267883. The reversal of 11439267838 is 83876293411.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252570 + ... + 294397.

It is an arithmetic number, because the mean of its divisors is an integer number (2145071754).

Almost surely, 2^11439267838 is an apocalyptic number.

11439267838 is a deficient number, since it is larger than the sum of its proper divisors (5721306194).

11439267838 is a wasteful number, since it uses less digits than its factorization.

11439267838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557426.

The product of its digits is 1741824, while the sum is 52.

The spelling of 11439267838 in words is "eleven billion, four hundred thirty-nine million, two hundred sixty-seven thousand, eight hundred thirty-eight".