12457013457 has 8 divisors (see below), whose sum is σ = 18982115776. Its totient is φ = 7118293392.

The previous prime is 12457013447. The next prime is 12457013479. The reversal of 12457013457 is 75431075421.

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

It is not a de Polignac number, because 12457013457 - 2¹² = 12457009361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457013447) 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, 296595538 + ... + 296595579.

It is an arithmetic number, because the mean of its divisors is an integer number (2372764472).

Almost surely, 2^12457013457 is an apocalyptic number.

It is an amenable number.

12457013457 is a deficient number, since it is larger than the sum of its proper divisors (6525102319).

12457013457 is an equidigital number, since it uses as much as digits as its factorization.

12457013457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593191127.

The product of its (nonzero) digits is 117600, while the sum is 39.

Adding to 12457013457 its reverse (75431075421), we get a palindrome (87888088878).

The spelling of 12457013457 in words is "twelve billion, four hundred fifty-seven million, thirteen thousand, four hundred fifty-seven".