12625453681 has 8 divisors (see below), whose sum is σ = 12653337920. Its totient is φ = 12597599952.

The previous prime is 12625453663. The next prime is 12625453721. The reversal of 12625453681 is 18635452621.

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 12625453681 - 2⁷ = 12625453553 is a prime.

It is a super-2 number, since 2×12625453681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12625453481) 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, 948490 + ... + 961708.

It is an arithmetic number, because the mean of its divisors is an integer number (1581667240).

Almost surely, 2^12625453681 is an apocalyptic number.

It is an amenable number.

12625453681 is a deficient number, since it is larger than the sum of its proper divisors (27884239).

12625453681 is a wasteful number, since it uses less digits than its factorization.

12625453681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15255.

The product of its digits is 345600, while the sum is 43.

The spelling of 12625453681 in words is "twelve billion, six hundred twenty-five million, four hundred fifty-three thousand, six hundred eighty-one".