68820866882 has 4 divisors (see below), whose sum is σ = 103231300326. Its totient is φ = 34410433440.

The previous prime is 68820866837. The next prime is 68820866903. The reversal of 68820866882 is 28866802886.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41407773121 + 27413093761 = 203489^2 + 165569^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17205216719 + ... + 17205216722.

Almost surely, 2^68820866882 is an apocalyptic number.

68820866882 is a deficient number, since it is larger than the sum of its proper divisors (34410433444).

68820866882 is a wasteful number, since it uses less digits than its factorization.

68820866882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34410433443.

The product of its (nonzero) digits is 28311552, while the sum is 62.

The spelling of 68820866882 in words is "sixty-eight billion, eight hundred twenty million, eight hundred sixty-six thousand, eight hundred eighty-two".