11436138447 has 8 divisors (see below), whose sum is σ = 15250202544. Its totient is φ = 7623083328.

The previous prime is 11436138397. The next prime is 11436138449. The reversal of 11436138447 is 74483163411.

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

It is not a de Polignac number, because 11436138447 - 2¹⁵ = 11436105679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11436138399 and 11436138408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11436138449) 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, 225388 + ... + 271425.

It is an arithmetic number, because the mean of its divisors is an integer number (1906275318).

Almost surely, 2^11436138447 is an apocalyptic number.

11436138447 is a deficient number, since it is larger than the sum of its proper divisors (3814064097).

11436138447 is an equidigital number, since it uses as much as digits as its factorization.

11436138447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504489.

The product of its digits is 193536, while the sum is 42.

The spelling of 11436138447 in words is "eleven billion, four hundred thirty-six million, one hundred thirty-eight thousand, four hundred forty-seven".