12612611631 has 8 divisors (see below), whose sum is σ = 16817369344. Its totient is φ = 8408130840.

The previous prime is 12612611623. The next prime is 12612611651. The reversal of 12612611631 is 13611621621.

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 12612611631 - 2³ = 12612611623 is a prime.

It is a super-2 number, since 2×12612611631² (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 (12612611651) 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, 88170 + ... + 181656.

It is an arithmetic number, because the mean of its divisors is an integer number (2102171168).

Almost surely, 2^12612611631 is an apocalyptic number.

12612611631 is a deficient number, since it is larger than the sum of its proper divisors (4204757713).

12612611631 is an equidigital number, since it uses as much as digits as its factorization.

12612611631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138461.

The product of its digits is 2592, while the sum is 30.

The spelling of 12612611631 in words is "twelve billion, six hundred twelve million, six hundred eleven thousand, six hundred thirty-one".