19838861537354 has 16 divisors (see below), whose sum is σ = 29775090775680. Its totient is φ = 9913832060880.

The previous prime is 19838861537309. The next prime is 19838861537359. The reversal of 19838861537354 is 45373516883891.

It is not an unprimeable number, because it can be changed into a prime (19838861537359) by changing a digit.

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, 52542419 + ... + 52918649.

It is an arithmetic number, because the mean of its divisors is an integer number (1860943173480).

Almost surely, 2^{19838861537354} is an apocalyptic number.

19838861537354 is a deficient number, since it is larger than the sum of its proper divisors (9936229238326).

19838861537354 is a wasteful number, since it uses less digits than its factorization.

19838861537354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391045.

The product of its digits is 522547200, while the sum is 71.

The spelling of 19838861537354 in words is "nineteen trillion, eight hundred thirty-eight billion, eight hundred sixty-one million, five hundred thirty-seven thousand, three hundred fifty-four".