4215531968 has 28 divisors (see below), whose sum is σ = 8409017472. Its totient is φ = 2096724480.

The previous prime is 4215531911. The next prime is 4215532019. The reversal of 4215531968 is 8691355124.

It is a happy number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 160205 + ... + 184652.

Almost surely, 2^4215531968 is an apocalyptic number.

It is an amenable number.

4215531968 is a deficient number, since it is larger than the sum of its proper divisors (4193485504).

4215531968 is a wasteful number, since it uses less digits than its factorization.

4215531968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345060 (or 345050 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The square root of 4215531968 is about 64927.1281360881. The cubic root of 4215531968 is about 1615.4150662145.

The spelling of 4215531968 in words is "four billion, two hundred fifteen million, five hundred thirty-one thousand, nine hundred sixty-eight".