11279518392 has 48 divisors (see below), whose sum is σ = 29137837320. Its totient is φ = 3638546880.

The previous prime is 11279518381. The next prime is 11279518417. The reversal of 11279518392 is 29381597211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221463 + ... + 267590.

Almost surely, 2^11279518392 is an apocalyptic number.

11279518392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11279518392 is an abundant number, since it is smaller than the sum of its proper divisors (17858318928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11279518392 is a wasteful number, since it uses less digits than its factorization.

11279518392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489124 (or 489089 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The spelling of 11279518392 in words is "eleven billion, two hundred seventy-nine million, five hundred eighteen thousand, three hundred ninety-two".