12257828338 has 12 divisors (see below), whose sum is σ = 21388659822. Its totient is φ = 5253354960.

The previous prime is 12257828281. The next prime is 12257828339. The reversal of 12257828338 is 83382875221.

It can be written as a sum of positive squares in only one way, i.e., 9144523129 + 3113305209 = 95627^2 + 55797^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 12257828291 and 12257828300.

It is not an unprimeable number, because it can be changed into a prime (12257828339) 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, 62539843 + ... + 62540038.

Almost surely, 2^12257828338 is an apocalyptic number.

12257828338 is a deficient number, since it is larger than the sum of its proper divisors (9130831484).

12257828338 is a wasteful number, since it uses less digits than its factorization.

12257828338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125079897 (or 125079890 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The spelling of 12257828338 in words is "twelve billion, two hundred fifty-seven million, eight hundred twenty-eight thousand, three hundred thirty-eight".