12460381578 has 64 divisors (see below), whose sum is σ = 27922320000. Its totient is φ = 4118671872.

The previous prime is 12460381573. The next prime is 12460381597. The reversal of 12460381578 is 87518306421.

12460381578 is a `hidden beast` number, since 1 + 2 + 46 + 0 + 38 + 1 + 578 = 666.

12460381578 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12460381578² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12460381573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7473901 + ... + 7475567.

It is an arithmetic number, because the mean of its divisors is an integer number (436286250).

Almost surely, 2^12460381578 is an apocalyptic number.

12460381578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12460381578 is an abundant number, since it is smaller than the sum of its proper divisors (15461938422).

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

12460381578 is a wasteful number, since it uses less digits than its factorization.

12460381578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

Adding to 12460381578 its reverse (87518306421), we get a palindrome (99978687999).

The spelling of 12460381578 in words is "twelve billion, four hundred sixty million, three hundred eighty-one thousand, five hundred seventy-eight".