11142672128 has 54 divisors (see below), whose sum is σ = 25873164576. Its totient is φ = 4775425536.

The previous prime is 11142672127. The next prime is 11142672169. The reversal of 11142672128 is 82127624111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142672127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 431600 + ... + 456687.

Almost surely, 2^11142672128 is an apocalyptic number.

It is an amenable number.

11142672128 is an abundant number, since it is smaller than the sum of its proper divisors (14730492448).

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

11142672128 is an frugal number, since it uses more digits than its factorization.

11142672128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888317 (or 888296 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The spelling of 11142672128 in words is "eleven billion, one hundred forty-two million, six hundred seventy-two thousand, one hundred twenty-eight".