12457936945 has 8 divisors (see below), whose sum is σ = 14950220544. Its totient is φ = 9965885424.

The previous prime is 12457936871. The next prime is 12457936949. The reversal of 12457936945 is 54963975421.

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 12457936945 - 2¹¹ = 12457934897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457936949) 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, 98442 + ... + 186028.

It is an arithmetic number, because the mean of its divisors is an integer number (1868777568).

Almost surely, 2^12457936945 is an apocalyptic number.

It is an amenable number.

12457936945 is a deficient number, since it is larger than the sum of its proper divisors (2492283599).

12457936945 is an equidigital number, since it uses as much as digits as its factorization.

12457936945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116039.

The product of its digits is 8164800, while the sum is 55.

The spelling of 12457936945 in words is "twelve billion, four hundred fifty-seven million, nine hundred thirty-six thousand, nine hundred forty-five".