12549582238 has 32 divisors (see below), whose sum is σ = 19444471200. Its totient is φ = 6072523776.

The previous prime is 12549582217. The next prime is 12549582239. The reversal of 12549582238 is 83228594521.

It is a junction number, because it is equal to n+sod(n) for n = 12549582191 and 12549582200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12549582239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1606470 + ... + 1614262.

It is an arithmetic number, because the mean of its divisors is an integer number (607639725).

Almost surely, 2^12549582238 is an apocalyptic number.

12549582238 is a deficient number, since it is larger than the sum of its proper divisors (6894888962).

12549582238 is a wasteful number, since it uses less digits than its factorization.

12549582238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076.

The product of its digits is 1382400, while the sum is 49.

The spelling of 12549582238 in words is "twelve billion, five hundred forty-nine million, five hundred eighty-two thousand, two hundred thirty-eight".