12454826656 has 12 divisors (see below), whose sum is σ = 24520440042. Its totient is φ = 6227413312.

The previous prime is 12454826653. The next prime is 12454826677. The reversal of 12454826656 is 65662845421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7282915600 + 5171911056 = 85340^2 + 71916^2 .

It is not an unprimeable number, because it can be changed into a prime (12454826651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194606635 + ... + 194606698.

Almost surely, 2^12454826656 is an apocalyptic number.

12454826656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12454826656 is a deficient number, since it is larger than the sum of its proper divisors (12065613386).

12454826656 is an equidigital number, since it uses as much as digits as its factorization.

12454826656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389213343 (or 389213335 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 49.

The spelling of 12454826656 in words is "twelve billion, four hundred fifty-four million, eight hundred twenty-six thousand, six hundred fifty-six".