11438371585 has 8 divisors (see below), whose sum is σ = 13735310400. Its totient is φ = 9144520944.

The previous prime is 11438371561. The next prime is 11438371589. The reversal of 11438371585 is 58517383411.

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 11438371585 - 2⁷ = 11438371457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11438371589) 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, 763885 + ... + 778714.

It is an arithmetic number, because the mean of its divisors is an integer number (1716913800).

Almost surely, 2^11438371585 is an apocalyptic number.

It is an amenable number.

11438371585 is a deficient number, since it is larger than the sum of its proper divisors (2296938815).

11438371585 is a wasteful number, since it uses less digits than its factorization.

11438371585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544087.

The product of its digits is 403200, while the sum is 46.

The spelling of 11438371585 in words is "eleven billion, four hundred thirty-eight million, three hundred seventy-one thousand, five hundred eighty-five".