12654450503 has 4 divisors (see below), whose sum is σ = 12654742608. Its totient is φ = 12654158400.

The previous prime is 12654450451. The next prime is 12654450517. The reversal of 12654450503 is 30505445621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12654450503 - 2⁶ = 12654450439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12654450533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66698 + ... + 172503.

It is an arithmetic number, because the mean of its divisors is an integer number (3163685652).

Almost surely, 2^12654450503 is an apocalyptic number.

12654450503 is a deficient number, since it is larger than the sum of its proper divisors (292105).

12654450503 is an equidigital number, since it uses as much as digits as its factorization.

12654450503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292104.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 12654450503 in words is "twelve billion, six hundred fifty-four million, four hundred fifty thousand, five hundred three".