68191219186 has 32 divisors (see below), whose sum is σ = 104750593200. Its totient is φ = 33285964800.

The previous prime is 68191219163. The next prime is 68191219189.

68191219186 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 59134080625 + 9057138561 = 243175^2 + 95169^2 .

It is not an unprimeable number, because it can be changed into a prime (68191219189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6700710 + ... + 6710878.

Almost surely, 2^68191219186 is an apocalyptic number.

68191219186 is a deficient number, since it is larger than the sum of its proper divisors (36559374014).

68191219186 is a wasteful number, since it uses less digits than its factorization.

68191219186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10734.

The product of its digits is 373248, while the sum is 52.

The spelling of 68191219186 in words is "sixty-eight billion, one hundred ninety-one million, two hundred nineteen thousand, one hundred eighty-six".