4521021353340 has 48 divisors (see below), whose sum is σ = 12659057550720. Its totient is φ = 1205586859840.

The previous prime is 4521021353309. The next prime is 4521021353351. The reversal of 4521021353340 is 433531201254.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3521251 + ... + 4630469.

It is an arithmetic number, because the mean of its divisors is an integer number (263730365640).

Almost surely, 2^{4521021353340} is an apocalyptic number.

It is an amenable number.

4521021353340 is an abundant number, since it is smaller than the sum of its proper divisors (8138036197380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4521021353340 is a wasteful number, since it uses less digits than its factorization.

4521021353340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177162 (or 1177160 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 4521021353340 its reverse (433531201254), we get a palindrome (4954552554594).

The spelling of 4521021353340 in words is "four trillion, five hundred twenty-one billion, twenty-one million, three hundred fifty-three thousand, three hundred forty".