1868169726342 has 20 divisors (see below), whose sum is σ = 4186084016796. Its totient is φ = 622723242060.

The previous prime is 1868169726317. The next prime is 1868169726347. The reversal of 1868169726342 is 2436279618681.

1868169726342 is a `hidden beast` number, since 1 + 8 + 68 + 169 + 72 + 6 + 342 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1868169726342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868169726347) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5765955784 + ... + 5765956107.

Almost surely, 2^{1868169726342} is an apocalyptic number.

1868169726342 is an abundant number, since it is smaller than the sum of its proper divisors (2317914290454).

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

1868169726342 is a wasteful number, since it uses less digits than its factorization.

1868169726342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11531911905 (or 11531911896 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 1868169726342 in words is "one trillion, eight hundred sixty-eight billion, one hundred sixty-nine million, seven hundred twenty-six thousand, three hundred forty-two".