11135540438 has 8 divisors (see below), whose sum is σ = 18221793480. Its totient is φ = 5061609280.

The previous prime is 11135540399. The next prime is 11135540441. The reversal of 11135540438 is 83404553111.

It is a happy number.

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 = 11135540398 and 11135540407.

It is a congruent number.

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, 253080443 + ... + 253080486.

It is an arithmetic number, because the mean of its divisors is an integer number (2277724185).

Almost surely, 2^11135540438 is an apocalyptic number.

11135540438 is a deficient number, since it is larger than the sum of its proper divisors (7086253042).

11135540438 is a wasteful number, since it uses less digits than its factorization.

11135540438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506160942.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 11135540438 in words is "eleven billion, one hundred thirty-five million, five hundred forty thousand, four hundred thirty-eight".