4221536536 has 32 divisors (see below), whose sum is σ = 9181175040. Its totient is φ = 1782224928.

The previous prime is 4221536521. The next prime is 4221536581. The reversal of 4221536536 is 6356351224.

It is a junction number, because it is equal to n+sod(n) for n = 4221536495 and 4221536504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558820 + ... + 566323.

It is an arithmetic number, because the mean of its divisors is an integer number (286911720).

Almost surely, 2^4221536536 is an apocalyptic number.

It is an amenable number.

4221536536 is an abundant number, since it is smaller than the sum of its proper divisors (4959638504).

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

4221536536 is a wasteful number, since it uses less digits than its factorization.

4221536536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125223 (or 1125219 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

The square root of 4221536536 is about 64973.3525070086. The cubic root of 4221536536 is about 1616.1816968444.

The spelling of 4221536536 in words is "four billion, two hundred twenty-one million, five hundred thirty-six thousand, five hundred thirty-six".