10004055172421 has 4 divisors (see below), whose sum is σ = 10141097024172. Its totient is φ = 9867013320672.

The previous prime is 10004055172399. The next prime is 10004055172451. The reversal of 10004055172421 is 12427155040001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4879853303521 + 5124201868900 = 2209039^2 + 2263670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10004055172421 is a prime.

It is a super-2 number, since 2×10004055172421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10004055172451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68520925766 + ... + 68520925911.

It is an arithmetic number, because the mean of its divisors is an integer number (2535274256043).

Almost surely, 2^{10004055172421} is an apocalyptic number.

It is an amenable number.

10004055172421 is a deficient number, since it is larger than the sum of its proper divisors (137041851751).

10004055172421 is an equidigital number, since it uses as much as digits as its factorization.

10004055172421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137041851750.

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 10004055172421 in words is "ten trillion, four billion, fifty-five million, one hundred seventy-two thousand, four hundred twenty-one".