21476574432133 has 4 divisors (see below), whose sum is σ = 21476590109260. Its totient is φ = 21476558755008.

The previous prime is 21476574432121. The next prime is 21476574432163. The reversal of 21476574432133 is 33123447567412.

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 21205859220324 + 270715211809 = 4604982^2 + 520303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21476574432133 is a prime.

It is a super-2 number, since 2×21476574432133² (a number of 27 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 (21476574432163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5563578 + ... + 8596891.

It is an arithmetic number, because the mean of its divisors is an integer number (5369147527315).

Almost surely, 2^{21476574432133} is an apocalyptic number.

It is an amenable number.

21476574432133 is a deficient number, since it is larger than the sum of its proper divisors (15677127).

21476574432133 is a wasteful number, since it uses less digits than its factorization.

21476574432133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15677126.

The product of its digits is 10160640, while the sum is 52.

The spelling of 21476574432133 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred seventy-four million, four hundred thirty-two thousand, one hundred thirty-three".