12457790235569 has 8 divisors (see below), whose sum is σ = 14249115999360. Its totient is φ = 10669374832896.

The previous prime is 12457790235523. The next prime is 12457790235581. The reversal of 12457790235569 is 96553209775421.

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 12457790235569 - 2¹² = 12457790231473 is a prime.

It is a super-2 number, since 2×12457790235569² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457790235599) 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, 727581104 + ... + 727598225.

It is an arithmetic number, because the mean of its divisors is an integer number (1781139499920).

Almost surely, 2^{12457790235569} is an apocalyptic number.

It is an amenable number.

12457790235569 is a deficient number, since it is larger than the sum of its proper divisors (1791325763791).

12457790235569 is a wasteful number, since it uses less digits than its factorization.

12457790235569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455180559.

The product of its (nonzero) digits is 142884000, while the sum is 65.

The spelling of 12457790235569 in words is "twelve trillion, four hundred fifty-seven billion, seven hundred ninety million, two hundred thirty-five thousand, five hundred sixty-nine".