12258657402 has 16 divisors (see below), whose sum is σ = 24585612480. Its totient is φ = 4074836192.

The previous prime is 12258657401. The next prime is 12258657413. The reversal of 12258657402 is 20475685221.

12258657402 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-3 number, since 3×12258657402³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12258657401) 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, 2843403 + ... + 2847710.

It is an arithmetic number, because the mean of its divisors is an integer number (1536600780).

Almost surely, 2^12258657402 is an apocalyptic number.

12258657402 is an abundant number, since it is smaller than the sum of its proper divisors (12326955078).

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

12258657402 is a wasteful number, since it uses less digits than its factorization.

12258657402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691477.

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 12258657402 in words is "twelve billion, two hundred fifty-eight million, six hundred fifty-seven thousand, four hundred two".