1068421215 has 64 divisors (see below), whose sum is σ = 1794203136. Its totient is φ = 542502912.

The previous prime is 1068421183. The next prime is 1068421229. The reversal of 1068421215 is 5121248601.

It is not a de Polignac number, because 1068421215 - 2⁵ = 1068421183 is a prime.

It is a super-2 number, since 2×1068421215² = 2283047785324152450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7798627 + ... + 7798763.

It is an arithmetic number, because the mean of its divisors is an integer number (28034424).

Almost surely, 2^1068421215 is an apocalyptic number.

1068421215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1068421215 is a deficient number, since it is larger than the sum of its proper divisors (725781921).

1068421215 is a wasteful number, since it uses less digits than its factorization.

1068421215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1068421215 is about 32686.7131262842. The cubic root of 1068421215 is about 1022.3058225294.

Adding to 1068421215 its reverse (5121248601), we get a palindrome (6189669816).

The spelling of 1068421215 in words is "one billion, sixty-eight million, four hundred twenty-one thousand, two hundred fifteen".