19455641111742 has 16 divisors (see below), whose sum is σ = 42448671516672. Its totient is φ = 5895648821720.

The previous prime is 19455641111729. The next prime is 19455641111759. The reversal of 19455641111742 is 24711114655491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147391220478 + ... + 147391220609.

It is an arithmetic number, because the mean of its divisors is an integer number (2653041969792).

Almost surely, 2^{19455641111742} is an apocalyptic number.

19455641111742 is an abundant number, since it is smaller than the sum of its proper divisors (22993030404930).

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

19455641111742 is a wasteful number, since it uses less digits than its factorization.

19455641111742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294782441103.

The product of its digits is 1209600, while the sum is 51.

The spelling of 19455641111742 in words is "nineteen trillion, four hundred fifty-five billion, six hundred forty-one million, one hundred eleven thousand, seven hundred forty-two".