19672668401 has 8 divisors (see below), whose sum is σ = 19962635520. Its totient is φ = 19383725088.

The previous prime is 19672668391. The next prime is 19672668469. The reversal of 19672668401 is 10486627691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19672668401 - 2²⁶ = 19605559537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19672668401.

It is not an unprimeable number, because it can be changed into a prime (19672668901) 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, 217196 + ... + 294141.

It is an arithmetic number, because the mean of its divisors is an integer number (2495329440).

Almost surely, 2^19672668401 is an apocalyptic number.

It is an amenable number.

19672668401 is a deficient number, since it is larger than the sum of its proper divisors (289967119).

19672668401 is an equidigital number, since it uses as much as digits as its factorization.

19672668401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511903.

The product of its (nonzero) digits is 870912, while the sum is 50.

The spelling of 19672668401 in words is "nineteen billion, six hundred seventy-two million, six hundred sixty-eight thousand, four hundred one".