11538285628 has 12 divisors (see below), whose sum is σ = 21379764672. Its totient is φ = 5429781440.

The previous prime is 11538285623. The next prime is 11538285637. The reversal of 11538285628 is 82658283511.

It is a super-2 number, since 2×11538285628² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538285623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84840268 + ... + 84840403.

It is an arithmetic number, because the mean of its divisors is an integer number (1781647056).

Almost surely, 2^11538285628 is an apocalyptic number.

It is an amenable number.

11538285628 is a deficient number, since it is larger than the sum of its proper divisors (9841479044).

11538285628 is a wasteful number, since it uses less digits than its factorization.

11538285628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169680692 (or 169680690 counting only the distinct ones).

The product of its digits is 921600, while the sum is 49.

The spelling of 11538285628 in words is "eleven billion, five hundred thirty-eight million, two hundred eighty-five thousand, six hundred twenty-eight".