12457864499 has 8 divisors (see below), whose sum is σ = 12611026512. Its totient is φ = 12304775680.

The previous prime is 12457864487. The next prime is 12457864511. The reversal of 12457864499 is 99446875421.

It is an interprime number because it is at equal distance from previous prime (12457864487) and next prime (12457864511).

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 12457864499 - 2⁴ = 12457864483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12457864439) 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, 375947 + ... + 407739.

It is an arithmetic number, because the mean of its divisors is an integer number (1576378314).

Almost surely, 2^12457864499 is an apocalyptic number.

12457864499 is a deficient number, since it is larger than the sum of its proper divisors (153162013).

12457864499 is an equidigital number, since it uses as much as digits as its factorization.

12457864499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36597.

The product of its digits is 17418240, while the sum is 59.

The spelling of 12457864499 in words is "twelve billion, four hundred fifty-seven million, eight hundred sixty-four thousand, four hundred ninety-nine".