12285619631 has 4 divisors (see below), whose sum is σ = 12285882264. Its totient is φ = 12285357000.

The previous prime is 12285619597. The next prime is 12285619637. The reversal of 12285619631 is 13691658221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12285619631 is a prime.

It is a super-2 number, since 2×12285619631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12285619637) 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, 39965 + ... + 161766.

It is an arithmetic number, because the mean of its divisors is an integer number (3071470566).

Almost surely, 2^12285619631 is an apocalyptic number.

12285619631 is a deficient number, since it is larger than the sum of its proper divisors (262633).

12285619631 is an equidigital number, since it uses as much as digits as its factorization.

12285619631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262632.

The product of its digits is 155520, while the sum is 44.

The spelling of 12285619631 in words is "twelve billion, two hundred eighty-five million, six hundred nineteen thousand, six hundred thirty-one".