12461021740 has 24 divisors (see below), whose sum is σ = 26280465120. Its totient is φ = 4963014528.

The previous prime is 12461021717. The next prime is 12461021747. The reversal of 12461021740 is 4712016421.

12461021740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12461021699 and 12461021708.

It is not an unprimeable number, because it can be changed into a prime (12461021747) 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 7 ways as a sum of consecutive naturals, for example, 1332360 + ... + 1341679.

It is an arithmetic number, because the mean of its divisors is an integer number (1095019380).

Almost surely, 2^12461021740 is an apocalyptic number.

12461021740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12461021740 is an abundant number, since it is smaller than the sum of its proper divisors (13819443380).

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

12461021740 is a wasteful number, since it uses less digits than its factorization.

12461021740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674281 (or 2674279 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 12461021740 in words is "twelve billion, four hundred sixty-one million, twenty-one thousand, seven hundred forty".