11281178572 has 24 divisors (see below), whose sum is σ = 20197243584. Its totient is φ = 5510956032.

The previous prime is 11281178567. The next prime is 11281178627. The reversal of 11281178572 is 27587118211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56478 + ... + 160474.

It is an arithmetic number, because the mean of its divisors is an integer number (841551816).

Almost surely, 2^11281178572 is an apocalyptic number.

It is an amenable number.

11281178572 is a deficient number, since it is larger than the sum of its proper divisors (8916065012).

11281178572 is a wasteful number, since it uses less digits than its factorization.

11281178572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104625 (or 104623 counting only the distinct ones).

The product of its digits is 62720, while the sum is 43.

The spelling of 11281178572 in words is "eleven billion, two hundred eighty-one million, one hundred seventy-eight thousand, five hundred seventy-two".