536421546521 has 48 divisors (see below), whose sum is σ = 633391870848. Its totient is φ = 444969504000.

The previous prime is 536421546509. The next prime is 536421546553. The reversal of 536421546521 is 125645124635.

It is a de Polignac number, because none of the positive numbers 2^k-536421546521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (536421546581) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519284621 + ... + 519285653.

It is an arithmetic number, because the mean of its divisors is an integer number (13195663976).

Almost surely, 2^536421546521 is an apocalyptic number.

It is an amenable number.

536421546521 is a deficient number, since it is larger than the sum of its proper divisors (96970324327).

536421546521 is a wasteful number, since it uses less digits than its factorization.

536421546521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470 (or 1411 counting only the distinct ones).

The product of its digits is 864000, while the sum is 44.

The spelling of 536421546521 in words is "five hundred thirty-six billion, four hundred twenty-one million, five hundred forty-six thousand, five hundred twenty-one".