68753704178881 has 16 divisors (see below), whose sum is σ = 69610428942208. Its totient is φ = 67902696576000.

The previous prime is 68753704178821. The next prime is 68753704178921. The reversal of 68753704178881 is 18887140735786.

It is a cyclic number.

It is not a de Polignac number, because 68753704178881 - 2¹³ = 68753704170689 is a prime.

It is a super-2 number, since 2×68753704178881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68753704178801) 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, 46690651 + ... + 48140671.

It is an arithmetic number, because the mean of its divisors is an integer number (4350651808888).

Almost surely, 2^{68753704178881} is an apocalyptic number.

68753704178881 is the 4787265-th hex number.

It is an amenable number.

68753704178881 is a deficient number, since it is larger than the sum of its proper divisors (856724763327).

68753704178881 is a wasteful number, since it uses less digits than its factorization.

68753704178881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451992.

The product of its (nonzero) digits is 505774080, while the sum is 73.

The spelling of 68753704178881 in words is "sixty-eight trillion, seven hundred fifty-three billion, seven hundred four million, one hundred seventy-eight thousand, eight hundred eighty-one".