5402131604521 has 16 divisors (see below), whose sum is σ = 5621939104320. Its totient is φ = 5186620313280.

The previous prime is 5402131604497. The next prime is 5402131604563. The reversal of 5402131604521 is 1254061312045.

It is a cyclic number.

It is not a de Polignac number, because 5402131604521 - 2⁵ = 5402131604489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5402131601521) 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 15 ways as a sum of consecutive naturals, for example, 31406011 + ... + 31577551.

It is an arithmetic number, because the mean of its divisors is an integer number (351371194020).

Almost surely, 2^{5402131604521} is an apocalyptic number.

It is an amenable number.

5402131604521 is a deficient number, since it is larger than the sum of its proper divisors (219807499799).

5402131604521 is a wasteful number, since it uses less digits than its factorization.

5402131604521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184056.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 5402131604521 its reverse (1254061312045), we get a palindrome (6656192916566).

The spelling of 5402131604521 in words is "five trillion, four hundred two billion, one hundred thirty-one million, six hundred four thousand, five hundred twenty-one".