19411729957242 has 96 divisors (see below), whose sum is σ = 48153549749760. Its totient is φ = 5536244401920.

The previous prime is 19411729957189. The next prime is 19411729957259. The reversal of 19411729957242 is 24275992711491.

19411729957242 is a `hidden beast` number, since 1 + 9 + 4 + 1 + 17 + 2 + 9 + 9 + 572 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 19411729957242.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238570438 + ... + 238651790.

It is an arithmetic number, because the mean of its divisors is an integer number (501599476560).

Almost surely, 2^{19411729957242} is an apocalyptic number.

19411729957242 is an abundant number, since it is smaller than the sum of its proper divisors (28741819792518).

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

19411729957242 is a wasteful number, since it uses less digits than its factorization.

19411729957242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84748 (or 84745 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 19411729957242 in words is "nineteen trillion, four hundred eleven billion, seven hundred twenty-nine million, nine hundred fifty-seven thousand, two hundred forty-two".