19368988226401 has 16 divisors (see below), whose sum is σ = 22084112240640. Its totient is φ = 16815388954320.

The previous prime is 19368988226369. The next prime is 19368988226407. The reversal of 19368988226401 is 10462288986391.

It is not a de Polignac number, because 19368988226401 - 2⁵ = 19368988226369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19368988226407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61682865 + ... + 61996078.

It is an arithmetic number, because the mean of its divisors is an integer number (1380257015040).

Almost surely, 2^{19368988226401} is an apocalyptic number.

19368988226401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19368988226401 is a deficient number, since it is larger than the sum of its proper divisors (2715124014239).

19368988226401 is a wasteful number, since it uses less digits than its factorization.

19368988226401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123679596.

The product of its (nonzero) digits is 71663616, while the sum is 67.

The spelling of 19368988226401 in words is "nineteen trillion, three hundred sixty-eight billion, nine hundred eighty-eight million, two hundred twenty-six thousand, four hundred one".