12049929257 has 8 divisors (see below), whose sum is σ = 12698518560. Its totient is φ = 11402778240.

The previous prime is 12049929253. The next prime is 12049929263. The reversal of 12049929257 is 75292994021.

12049929257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12049929257 - 2² = 12049929253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12049929253) 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, 342344 + ... + 375897.

It is an arithmetic number, because the mean of its divisors is an integer number (1587314820).

Almost surely, 2^12049929257 is an apocalyptic number.

It is an amenable number.

12049929257 is a deficient number, since it is larger than the sum of its proper divisors (648589303).

12049929257 is an equidigital number, since it uses as much as digits as its factorization.

12049929257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719143.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 12049929257 in words is "twelve billion, forty-nine million, nine hundred twenty-nine thousand, two hundred fifty-seven".