12621464115 has 64 divisors (see below), whose sum is σ = 22936435200. Its totient is φ = 5875282944.

The previous prime is 12621464113. The next prime is 12621464123. The reversal of 12621464115 is 51146412621.

It is not a de Polignac number, because 12621464115 - 2¹ = 12621464113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12621464113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2105152 + ... + 2111138.

It is an arithmetic number, because the mean of its divisors is an integer number (358381800).

Almost surely, 2^12621464115 is an apocalyptic number.

12621464115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12621464115 is a deficient number, since it is larger than the sum of its proper divisors (10314971085).

12621464115 is a wasteful number, since it uses less digits than its factorization.

12621464115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596.

The product of its digits is 11520, while the sum is 33.

Adding to 12621464115 its reverse (51146412621), we get a palindrome (63767876736).

The spelling of 12621464115 in words is "twelve billion, six hundred twenty-one million, four hundred sixty-four thousand, one hundred fifteen".