12621602135823 has 8 divisors (see below), whose sum is σ = 16828922569008. Its totient is φ = 8414341563264.

The previous prime is 12621602135809. The next prime is 12621602135851. The reversal of 12621602135823 is 32853120612621.

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

It is not a de Polignac number, because 12621602135823 - 2¹² = 12621602131727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12621602535823) 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, 14470840 + ... + 15318237.

It is an arithmetic number, because the mean of its divisors is an integer number (2103615321126).

Almost surely, 2^{12621602135823} is an apocalyptic number.

12621602135823 is a deficient number, since it is larger than the sum of its proper divisors (4207320433185).

12621602135823 is a wasteful number, since it uses less digits than its factorization.

12621602135823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29930313.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 12621602135823 in words is "twelve trillion, six hundred twenty-one billion, six hundred two million, one hundred thirty-five thousand, eight hundred twenty-three".