12480617749 has 2 divisors, whose sum is σ = 12480617750. Its totient is φ = 12480617748.

The previous prime is 12480617729. The next prime is 12480617767. The reversal of 12480617749 is 94771608421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12388803025 + 91814724 = 111305^2 + 9582^2 .

It is a cyclic number.

It is not a de Polignac number, because 12480617749 - 2¹⁷ = 12480486677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12480617729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6240308874 + 6240308875.

It is an arithmetic number, because the mean of its divisors is an integer number (6240308875).

Almost surely, 2^12480617749 is an apocalyptic number.

It is an amenable number.

12480617749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12480617749 is an equidigital number, since it uses as much as digits as its factorization.

12480617749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 12480617749 in words is "twelve billion, four hundred eighty million, six hundred seventeen thousand, seven hundred forty-nine".