12456770243 has 8 divisors (see below), whose sum is σ = 12526716576. Its totient is φ = 12386880000.

The previous prime is 12456770239. The next prime is 12456770267. The reversal of 12456770243 is 34207765421.

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 12456770243 - 2² = 12456770239 is a prime.

It is a super-2 number, since 2×12456770243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12456770243.

It is not an unprimeable number, because it can be changed into a prime (12456770203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479693 + ... + 504993.

It is an arithmetic number, because the mean of its divisors is an integer number (1565839572).

Almost surely, 2^12456770243 is an apocalyptic number.

12456770243 is a deficient number, since it is larger than the sum of its proper divisors (69946333).

12456770243 is a wasteful number, since it uses less digits than its factorization.

12456770243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28045.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 12456770243 in words is "twelve billion, four hundred fifty-six million, seven hundred seventy thousand, two hundred forty-three".