12457746865 has 8 divisors (see below), whose sum is σ = 15067008000. Its totient is φ = 9887722992.

The previous prime is 12457746859. The next prime is 12457746869. The reversal of 12457746865 is 56864775421.

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 12457746865 - 2⁷ = 12457746737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12457746869) 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, 9808615 + ... + 9809884.

It is an arithmetic number, because the mean of its divisors is an integer number (1883376000).

Almost surely, 2^12457746865 is an apocalyptic number.

It is an amenable number.

12457746865 is a deficient number, since it is larger than the sum of its proper divisors (2609261135).

12457746865 is a wasteful number, since it uses less digits than its factorization.

12457746865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19618631.

The product of its digits is 11289600, while the sum is 55.

The spelling of 12457746865 in words is "twelve billion, four hundred fifty-seven million, seven hundred forty-six thousand, eight hundred sixty-five".