12459998880 has 192 divisors, whose sum is σ = 49840116480. Its totient is φ = 2847992832.

The previous prime is 12459998861. The next prime is 12459998917. The reversal of 12459998880 is 8889995421.

12459998880 is a `hidden beast` number, since 12 + 459 + 9 + 98 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175779 + ... + 236258.

It is an arithmetic number, because the mean of its divisors is an integer number (259583940).

Almost surely, 2^12459998880 is an apocalyptic number.

12459998880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12459998880 is an abundant number, since it is smaller than the sum of its proper divisors (37380117600).

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

12459998880 is a wasteful number, since it uses less digits than its factorization.

12459998880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412068 (or 412054 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 63.

The spelling of 12459998880 in words is "twelve billion, four hundred fifty-nine million, nine hundred ninety-eight thousand, eight hundred eighty".