2019896631468 has 18 divisors (see below), whose sum is σ = 5105849818524. Its totient is φ = 673298877144.

The previous prime is 2019896631463. The next prime is 2019896631469. The reversal of 2019896631468 is 8641366989102.

2019896631468 is a `hidden beast` number, since 2 + 0 + 1 + 9 + 89 + 66 + 31 + 468 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2019896631463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28054119846 + ... + 28054119917.

Almost surely, 2^{2019896631468} is an apocalyptic number.

It is an amenable number.

2019896631468 is an abundant number, since it is smaller than the sum of its proper divisors (3085953187056).

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

2019896631468 is a wasteful number, since it uses less digits than its factorization.

2019896631468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56108239773 (or 56108239768 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 2019896631468 in words is "two trillion, nineteen billion, eight hundred ninety-six million, six hundred thirty-one thousand, four hundred sixty-eight".