68939266143 has 16 divisors (see below), whose sum is σ = 100437321600. Its totient is φ = 41713862880.

The previous prime is 68939266141. The next prime is 68939266183. The reversal of 68939266143 is 34166293986.

It is not a de Polignac number, because 68939266143 - 2¹ = 68939266141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68939266141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667028 + ... + 1707881.

It is an arithmetic number, because the mean of its divisors is an integer number (6277332600).

Almost surely, 2^68939266143 is an apocalyptic number.

68939266143 is a deficient number, since it is larger than the sum of its proper divisors (31498055457).

68939266143 is a wasteful number, since it uses less digits than its factorization.

68939266143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375542.

The product of its digits is 10077696, while the sum is 57.

The spelling of 68939266143 in words is "sixty-eight billion, nine hundred thirty-nine million, two hundred sixty-six thousand, one hundred forty-three".