19226694865968 has 120 divisors (see below), whose sum is σ = 54803192506608. Its totient is φ = 6291352843776.

The previous prime is 19226694865967. The next prime is 19226694865993. The reversal of 19226694865968 is 86956849662291.

It is a happy number.

19226694865968 is a `hidden beast` number, since 1 + 9 + 2 + 26 + 6 + 9 + 486 + 59 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (19226694865967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3246655 + ... + 6999582.

Almost surely, 2^{19226694865968} is an apocalyptic number.

19226694865968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19226694865968 is an abundant number, since it is smaller than the sum of its proper divisors (35576497640640).

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

19226694865968 is a wasteful number, since it uses less digits than its factorization.

19226694865968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10246491 (or 10246482 counting only the distinct ones).

The product of its digits is 4837294080, while the sum is 81.

The spelling of 19226694865968 in words is "nineteen trillion, two hundred twenty-six billion, six hundred ninety-four million, eight hundred sixty-five thousand, nine hundred sixty-eight".