68266191408 has 40 divisors (see below), whose sum is σ = 176516702208. Its totient is φ = 22734445632.

The previous prime is 68266191401. The next prime is 68266191431. The reversal of 68266191408 is 80419166286.

It is not an unprimeable number, because it can be changed into a prime (68266191401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602016 + ... + 706367.

Almost surely, 2^68266191408 is an apocalyptic number.

It is an amenable number.

68266191408 is an abundant number, since it is smaller than the sum of its proper divisors (108250510800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68266191408 is a wasteful number, since it uses less digits than its factorization.

68266191408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309481 (or 1309475 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 68266191408 in words is "sixty-eight billion, two hundred sixty-six million, one hundred ninety-one thousand, four hundred eight".