12415511623 has 2 divisors, whose sum is σ = 12415511624. Its totient is φ = 12415511622.

The previous prime is 12415511617. The next prime is 12415511651. The reversal of 12415511623 is 32611551421.

It is a weak prime.

It is an emirp because it is prime and its reverse (32611551421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12415511623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12415518623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6207755811 + 6207755812.

It is an arithmetic number, because the mean of its divisors is an integer number (6207755812).

Almost surely, 2^12415511623 is an apocalyptic number.

12415511623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12415511623 is an equidigital number, since it uses as much as digits as its factorization.

12415511623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The spelling of 12415511623 in words is "twelve billion, four hundred fifteen million, five hundred eleven thousand, six hundred twenty-three".