12421674553 has 8 divisors (see below), whose sum is σ = 12676494600. Its totient is φ = 12169415808.

The previous prime is 12421674541. The next prime is 12421674557. The reversal of 12421674553 is 35547612421.

It can be written as a sum of positive squares in 4 ways, for example, as 2768022544 + 9653652009 = 52612^2 + 98253^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12421674553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12421674557) 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, 630526 + ... + 649927.

It is an arithmetic number, because the mean of its divisors is an integer number (1584561825).

Almost surely, 2^12421674553 is an apocalyptic number.

It is an amenable number.

12421674553 is a deficient number, since it is larger than the sum of its proper divisors (254820047).

12421674553 is a wasteful number, since it uses less digits than its factorization.

12421674553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280651.

The product of its digits is 201600, while the sum is 40.

The spelling of 12421674553 in words is "twelve billion, four hundred twenty-one million, six hundred seventy-four thousand, five hundred fifty-three".