1068933611691 has 96 divisors (see below), whose sum is σ = 1742826309120. Its totient is φ = 625838400000.

The previous prime is 1068933611671. The next prime is 1068933611731. The reversal of 1068933611691 is 1961163398601.

It is a happy number.

1068933611691 is a `hidden beast` number, since 10 + 6 + 8 + 9 + 3 + 3 + 611 + 6 + 9 + 1 = 666.

It is not a de Polignac number, because 1068933611691 - 2¹⁷ = 1068933480619 is a prime.

It is a super-2 number, since 2×1068933611691² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068933611671) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 81151536 + ... + 81164706.

It is an arithmetic number, because the mean of its divisors is an integer number (18154440720).

Almost surely, 2^{1068933611691} is an apocalyptic number.

1068933611691 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1068933611691 is a deficient number, since it is larger than the sum of its proper divisors (673892697429).

1068933611691 is a wasteful number, since it uses less digits than its factorization.

1068933611691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13489 (or 13486 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 1068933611691 in words is "one trillion, sixty-eight billion, nine hundred thirty-three million, six hundred eleven thousand, six hundred ninety-one".