68990303684061 has 16 divisors (see below), whose sum is σ = 102300520869120. Its totient is φ = 45951837187680.

The previous prime is 68990303684039. The next prime is 68990303684117. The reversal of 68990303684061 is 16048630309986.

68990303684061 is a `hidden beast` number, since 6 + 89 + 90 + 3 + 0 + 3 + 68 + 406 + 1 = 666.

It is not a de Polignac number, because 68990303684061 - 2⁷ = 68990303683933 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68990303684061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68990303684761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1158264160 + ... + 1158323721.

It is an arithmetic number, because the mean of its divisors is an integer number (6393782554320).

Almost surely, 2^{68990303684061} is an apocalyptic number.

It is an amenable number.

68990303684061 is a deficient number, since it is larger than the sum of its proper divisors (33310217185059).

68990303684061 is a wasteful number, since it uses less digits than its factorization.

68990303684061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316588993 (or 2316588987 counting only the distinct ones).

The product of its (nonzero) digits is 40310784, while the sum is 63.

The spelling of 68990303684061 in words is "sixty-eight trillion, nine hundred ninety billion, three hundred three million, six hundred eighty-four thousand, sixty-one".