5351434440521 has 8 divisors (see below), whose sum is σ = 5763656198664. Its totient is φ = 4939294533120.

The previous prime is 5351434440379. The next prime is 5351434440529. The reversal of 5351434440521 is 1250444341535.

It can be written as a sum of positive squares in 4 ways, for example, as 137336206921 + 5214098233600 = 370589^2 + 2283440^2 .

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 5351434440521 - 2³⁴ = 5334254571337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5351434440529) 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, 20326856 + ... + 20588441.

It is an arithmetic number, because the mean of its divisors is an integer number (720457024833).

Almost surely, 2^{5351434440521} is an apocalyptic number.

It is an amenable number.

5351434440521 is a deficient number, since it is larger than the sum of its proper divisors (412221758143).

5351434440521 is a wasteful number, since it uses less digits than its factorization.

5351434440521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40925371.

The product of its (nonzero) digits is 576000, while the sum is 41.

The spelling of 5351434440521 in words is "five trillion, three hundred fifty-one billion, four hundred thirty-four million, four hundred forty thousand, five hundred twenty-one".