12459419405 has 64 divisors (see below), whose sum is σ = 16310937600. Its totient is φ = 9116789760.

The previous prime is 12459419393. The next prime is 12459419407. The reversal of 12459419405 is 50491495421.

It is not a de Polignac number, because 12459419405 - 2⁴ = 12459419389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12459419407) 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, 54407831 + ... + 54408059.

It is an arithmetic number, because the mean of its divisors is an integer number (254858400).

Almost surely, 2^12459419405 is an apocalyptic number.

It is an amenable number.

12459419405 is a deficient number, since it is larger than the sum of its proper divisors (3851518195).

12459419405 is a wasteful number, since it uses less digits than its factorization.

12459419405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 12459419405 in words is "twelve billion, four hundred fifty-nine million, four hundred nineteen thousand, four hundred five".