11138678237 has 16 divisors (see below), whose sum is σ = 12139416000. Its totient is φ = 10180001664.

The previous prime is 11138678207. The next prime is 11138678249. The reversal of 11138678237 is 73287683111.

It is a cyclic number.

It is not a de Polignac number, because 11138678237 - 2¹⁶ = 11138612701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11138678191 and 11138678200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11138678207) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 702398 + ... + 718080.

It is an arithmetic number, because the mean of its divisors is an integer number (758713500).

Almost surely, 2^11138678237 is an apocalyptic number.

It is an amenable number.

11138678237 is a deficient number, since it is larger than the sum of its proper divisors (1000737763).

11138678237 is a wasteful number, since it uses less digits than its factorization.

11138678237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17020.

The product of its digits is 338688, while the sum is 47.

The spelling of 11138678237 in words is "eleven billion, one hundred thirty-eight million, six hundred seventy-eight thousand, two hundred thirty-seven".