10405315549621 has 8 divisors (see below), whose sum is σ = 10452665490624. Its totient is φ = 10358065399200.

The previous prime is 10405315549591. The next prime is 10405315549649. The reversal of 10405315549621 is 12694551350401.

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 10405315549621 - 2¹⁷ = 10405315418549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10405315549121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24738625 + ... + 25155718.

It is an arithmetic number, because the mean of its divisors is an integer number (1306583186328).

Almost surely, 2^{10405315549621} is an apocalyptic number.

It is an amenable number.

10405315549621 is a deficient number, since it is larger than the sum of its proper divisors (47349941003).

10405315549621 is an equidigital number, since it uses as much as digits as its factorization.

10405315549621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49895291.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 10405315549621 in words is "ten trillion, four hundred five billion, three hundred fifteen million, five hundred forty-nine thousand, six hundred twenty-one".