12538751653 has 8 divisors (see below), whose sum is σ = 12562333056. Its totient is φ = 12515193600.

The previous prime is 12538751647. The next prime is 12538751677. The reversal of 12538751653 is 35615783521.

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 12538751653 - 2²⁹ = 12001880741 is a prime.

It is a super-2 number, since 2×12538751653² (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 (12538751683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346373 + ... + 1355653.

It is an arithmetic number, because the mean of its divisors is an integer number (1570291632).

Almost surely, 2^12538751653 is an apocalyptic number.

It is an amenable number.

12538751653 is a deficient number, since it is larger than the sum of its proper divisors (23581403).

12538751653 is an equidigital number, since it uses as much as digits as its factorization.

12538751653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11675.

The product of its digits is 756000, while the sum is 46.

The spelling of 12538751653 in words is "twelve billion, five hundred thirty-eight million, seven hundred fifty-one thousand, six hundred fifty-three".