19354118562142 has 64 divisors (see below), whose sum is σ = 36637831802880. Its totient is φ = 7464541049856.

The previous prime is 19354118562139. The next prime is 19354118562253. The reversal of 19354118562142 is 24126581145391.

It is a self number, because there is not a number n which added to its sum of digits gives 19354118562142.

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 31 ways as a sum of consecutive naturals, for example, 6998542 + ... + 9364177.

It is an arithmetic number, because the mean of its divisors is an integer number (572466121920).

Almost surely, 2^{19354118562142} is an apocalyptic number.

19354118562142 is a deficient number, since it is larger than the sum of its proper divisors (17283713240738).

19354118562142 is a wasteful number, since it uses less digits than its factorization.

19354118562142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16362905.

The product of its digits is 2073600, while the sum is 52.

The spelling of 19354118562142 in words is "nineteen trillion, three hundred fifty-four billion, one hundred eighteen million, five hundred sixty-two thousand, one hundred forty-two".