68428973085 has 64 divisors (see below), whose sum is σ = 123883409664. Its totient is φ = 31961088000.

The previous prime is 68428973083. The next prime is 68428973111. The reversal of 68428973085 is 58037982486.

It is not a de Polignac number, because 68428973085 - 2¹ = 68428973083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68428973083) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 561117 + ... + 672093.

It is an arithmetic number, because the mean of its divisors is an integer number (1935678276).

Almost surely, 2^68428973085 is an apocalyptic number.

It is an amenable number.

68428973085 is a deficient number, since it is larger than the sum of its proper divisors (55454436579).

68428973085 is a wasteful number, since it uses less digits than its factorization.

68428973085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111134.

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 68428973085 in words is "sixty-eight billion, four hundred twenty-eight million, nine hundred seventy-three thousand, eighty-five".