11835438949 has 8 divisors (see below), whose sum is σ = 11868192000. Its totient is φ = 11802708192.

The previous prime is 11835438911. The next prime is 11835438971. The reversal of 11835438949 is 94983453811.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11835438949 - 2⁷ = 11835438821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11835438949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11835418949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1940697 + ... + 1946785.

It is an arithmetic number, because the mean of its divisors is an integer number (1483524000).

Almost surely, 2^11835438949 is an apocalyptic number.

It is an amenable number.

11835438949 is a deficient number, since it is larger than the sum of its proper divisors (32753051).

11835438949 is an equidigital number, since it uses as much as digits as its factorization.

11835438949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147.

The product of its digits is 3732480, while the sum is 55.

The spelling of 11835438949 in words is "eleven billion, eight hundred thirty-five million, four hundred thirty-eight thousand, nine hundred forty-nine".