12551264326 has 16 divisors (see below), whose sum is σ = 19004634000. Its totient is φ = 6216416928.

The previous prime is 12551264263. The next prime is 12551264371. The reversal of 12551264326 is 62346215521.

It is a super-2 number, since 2×12551264326² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575000 + ... + 1582948.

It is an arithmetic number, because the mean of its divisors is an integer number (1187789625).

Almost surely, 2^12551264326 is an apocalyptic number.

12551264326 is a deficient number, since it is larger than the sum of its proper divisors (6453369674).

12551264326 is a wasteful number, since it uses less digits than its factorization.

12551264326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15303.

The product of its digits is 86400, while the sum is 37.

Adding to 12551264326 its reverse (62346215521), we get a palindrome (74897479847).

The spelling of 12551264326 in words is "twelve billion, five hundred fifty-one million, two hundred sixty-four thousand, three hundred twenty-six".