2019867043454 has 32 divisors (see below), whose sum is σ = 3298989542016. Its totient is φ = 921938734080.

The previous prime is 2019867043423. The next prime is 2019867043489. The reversal of 2019867043454 is 4543407689102.

It is a junction number, because it is equal to n+sod(n) for n = 2019867043396 and 2019867043405.

It is a congruent number.

It is an unprimeable number.

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, 3044924 + ... + 3648464.

It is an arithmetic number, because the mean of its divisors is an integer number (103093423188).

It is a 1-persistent number, because it is pandigital, but 2⋅2019867043454 = 4039734086908 is not.

Almost surely, 2^{2019867043454} is an apocalyptic number.

2019867043454 is a deficient number, since it is larger than the sum of its proper divisors (1279122498562).

2019867043454 is a wasteful number, since it uses less digits than its factorization.

2019867043454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604980.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 2019867043454 in words is "two trillion, nineteen billion, eight hundred sixty-seven million, forty-three thousand, four hundred fifty-four".