68890209886 has 16 divisors (see below), whose sum is σ = 104493678048. Its totient is φ = 34059868000.

The previous prime is 68890209881. The next prime is 68890209887.

68890209886 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×68890209886² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68890209881) 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, 64450 + ... + 376741.

It is an arithmetic number, because the mean of its divisors is an integer number (6530854878).

Almost surely, 2^68890209886 is an apocalyptic number.

68890209886 is a deficient number, since it is larger than the sum of its proper divisors (35603468162).

68890209886 is a wasteful number, since it uses less digits than its factorization.

68890209886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442067.

The product of its (nonzero) digits is 23887872, while the sum is 64.

The spelling of 68890209886 in words is "sixty-eight billion, eight hundred ninety million, two hundred nine thousand, eight hundred eighty-six".