12459399120 has 240 divisors, whose sum is σ = 48286647552. Its totient is φ = 2820096000.

The previous prime is 12459399119. The next prime is 12459399143. The reversal of 12459399120 is 2199395421.

12459399120 is a `hidden beast` number, since 1 + 245 + 9 + 399 + 12 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 507120 + ... + 531120.

Almost surely, 2^12459399120 is an apocalyptic number.

12459399120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12459399120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24143323776).

12459399120 is an abundant number, since it is smaller than the sum of its proper divisors (35827248432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12459399120 is a wasteful number, since it uses less digits than its factorization.

12459399120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24130 (or 24121 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 12459399120 in words is "twelve billion, four hundred fifty-nine million, three hundred ninety-nine thousand, one hundred twenty".