12641255042 has 8 divisors (see below), whose sum is σ = 20420488956. Its totient is φ = 5834425392.

The previous prime is 12641255027. The next prime is 12641255069. The reversal of 12641255042 is 24055214621.

It can be written as a sum of positive squares in 2 ways, for example, as 9317847841 + 3323407201 = 96529^2 + 57649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243101033 + ... + 243101084.

Almost surely, 2^12641255042 is an apocalyptic number.

12641255042 is a deficient number, since it is larger than the sum of its proper divisors (7779233914).

12641255042 is a wasteful number, since it uses less digits than its factorization.

12641255042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486202132.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 12641255042 its reverse (24055214621), we get a palindrome (36696469663).

The spelling of 12641255042 in words is "twelve billion, six hundred forty-one million, two hundred fifty-five thousand, forty-two".