68001669249933 has 16 divisors (see below), whose sum is σ = 91217045401920. Its totient is φ = 45060773581824.

The previous prime is 68001669249919. The next prime is 68001669249953. The reversal of 68001669249933 is 33994296610086.

It is not a de Polignac number, because 68001669249933 - 2²¹ = 68001667152781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68001669249953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49819638 + ... + 51166391.

It is an arithmetic number, because the mean of its divisors is an integer number (5701065337620).

Almost surely, 2^{68001669249933} is an apocalyptic number.

It is an amenable number.

68001669249933 is a deficient number, since it is larger than the sum of its proper divisors (23215376151987).

68001669249933 is a wasteful number, since it uses less digits than its factorization.

68001669249933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100987388.

The product of its (nonzero) digits is 90699264, while the sum is 66.

The spelling of 68001669249933 in words is "sixty-eight trillion, one billion, six hundred sixty-nine million, two hundred forty-nine thousand, nine hundred thirty-three".