68890841393 has 16 divisors (see below), whose sum is σ = 76176015360. Its totient is φ = 61777544400.

The previous prime is 68890841381. The next prime is 68890841407. The reversal of 68890841393 is 39314809886.

It is not a de Polignac number, because 68890841393 - 2⁴ = 68890841377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68890841353) 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, 908138 + ... + 981068.

It is an arithmetic number, because the mean of its divisors is an integer number (4761000960).

Almost surely, 2^68890841393 is an apocalyptic number.

It is an amenable number.

68890841393 is a deficient number, since it is larger than the sum of its proper divisors (7285173967).

68890841393 is a wasteful number, since it uses less digits than its factorization.

68890841393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74108.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 68890841393 in words is "sixty-eight billion, eight hundred ninety million, eight hundred forty-one thousand, three hundred ninety-three".