5354402320521 has 12 divisors (see below), whose sum is σ = 7805092069060. Its totient is φ = 3536852908320.

The previous prime is 5354402320507. The next prime is 5354402320549. The reversal of 5354402320521 is 1250232044535.

5354402320521 is a `hidden beast` number, since 5 + 3 + 5 + 440 + 2 + 3 + 205 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4121549625600 + 1232852694921 = 2030160^2 + 1110339^2 .

It is not a de Polignac number, because 5354402320521 - 2¹⁵ = 5354402287753 is a prime.

It is a super-2 number, since 2×5354402320521² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5354402320571) 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 11 ways as a sum of consecutive naturals, for example, 2729052190 + ... + 2729054151.

Almost surely, 2^{5354402320521} is an apocalyptic number.

It is an amenable number.

5354402320521 is a deficient number, since it is larger than the sum of its proper divisors (2450689748539).

5354402320521 is a wasteful number, since it uses less digits than its factorization.

5354402320521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5458106456 (or 5458106453 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 5354402320521 in words is "five trillion, three hundred fifty-four billion, four hundred two million, three hundred twenty thousand, five hundred twenty-one".