12635324403 has 8 divisors (see below), whose sum is σ = 18143029968. Its totient is φ = 7775584224.

The previous prime is 12635324369. The next prime is 12635324423. The reversal of 12635324403 is 30442353621.

It is a happy number.

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

It is not a de Polignac number, because 12635324403 - 2⁹ = 12635323891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12635324423) 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, 161991300 + ... + 161991377.

It is an arithmetic number, because the mean of its divisors is an integer number (2267878746).

Almost surely, 2^12635324403 is an apocalyptic number.

12635324403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12635324403 is a deficient number, since it is larger than the sum of its proper divisors (5507705565).

12635324403 is a wasteful number, since it uses less digits than its factorization.

12635324403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323982693.

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 12635324403 in words is "twelve billion, six hundred thirty-five million, three hundred twenty-four thousand, four hundred three".