19844654704402 has 16 divisors (see below), whose sum is σ = 34182180352800. Its totient is φ = 8545545087840.

The previous prime is 19844654704367. The next prime is 19844654704519. The reversal of 19844654704402 is 20440745644891.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 23737624827 + ... + 23737625662.

It is an arithmetic number, because the mean of its divisors is an integer number (2136386272050).

Almost surely, 2^{19844654704402} is an apocalyptic number.

19844654704402 is a deficient number, since it is larger than the sum of its proper divisors (14337525648398).

19844654704402 is a wasteful number, since it uses less digits than its factorization.

19844654704402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47475250521.

The product of its (nonzero) digits is 30965760, while the sum is 58.

The spelling of 19844654704402 in words is "nineteen trillion, eight hundred forty-four billion, six hundred fifty-four million, seven hundred four thousand, four hundred two".