12459861024 has 96 divisors (see below), whose sum is σ = 36754591104. Its totient is φ = 3667107840.

The previous prime is 12459861023. The next prime is 12459861053. The reversal of 12459861024 is 42016895421.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12459861023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188337 + ... + 245744.

It is an arithmetic number, because the mean of its divisors is an integer number (382860324).

Almost surely, 2^12459861024 is an apocalyptic number.

It is an amenable number.

12459861024 is an abundant number, since it is smaller than the sum of its proper divisors (24294730080).

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

12459861024 is a wasteful number, since it uses less digits than its factorization.

12459861024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434130 (or 434122 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 12459861024 in words is "twelve billion, four hundred fifty-nine million, eight hundred sixty-one thousand, twenty-four".