4215621612 has 24 divisors (see below), whose sum is σ = 9879410800. Its totient is φ = 1399070016.

The previous prime is 4215621589. The next prime is 4215621623. The reversal of 4215621612 is 2161265124.

It is a super-2 number, since 2×4215621612² = 35542931151122957088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4215621612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764287 + ... + 769782.

Almost surely, 2^4215621612 is an apocalyptic number.

It is an amenable number.

4215621612 is an abundant number, since it is smaller than the sum of its proper divisors (5663789188).

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

4215621612 is a wasteful number, since it uses less digits than its factorization.

4215621612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534305 (or 1534303 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 4215621612 is about 64927.8184755964. The cubic root of 4215621612 is about 1615.4265168248.

Adding to 4215621612 its reverse (2161265124), we get a palindrome (6376886736).

The spelling of 4215621612 in words is "four billion, two hundred fifteen million, six hundred twenty-one thousand, six hundred twelve".