1068921099 has 12 divisors (see below), whose sum is σ = 1544585536. Its totient is φ = 712342512.

The previous prime is 1068921097. The next prime is 1068921107. The reversal of 1068921099 is 9901298601.

It is not a de Polignac number, because 1068921099 - 2¹ = 1068921097 is a prime.

It is a super-2 number, since 2×1068921099² = 2285184631774735602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1068921097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3942 + ... + 46404.

Almost surely, 2^1068921099 is an apocalyptic number.

1068921099 is a deficient number, since it is larger than the sum of its proper divisors (475664437).

1068921099 is a wasteful number, since it uses less digits than its factorization.

1068921099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45266 (or 45263 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 1068921099 is about 32694.3588253387. The cubic root of 1068921099 is about 1022.4652336423.

The spelling of 1068921099 in words is "one billion, sixty-eight million, nine hundred twenty-one thousand, ninety-nine".