2168243054542 has 16 divisors (see below), whose sum is σ = 3393982023840. Its totient is φ = 1036921554592.

The previous prime is 2168243054503. The next prime is 2168243054573. The reversal of 2168243054542 is 2454503428612.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a junction number, because it is equal to n+sod(n) for n = 2168243054492 and 2168243054501.

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, 705673 + ... + 2198740.

It is an arithmetic number, because the mean of its divisors is an integer number (212123876490).

Almost surely, 2^{2168243054542} is an apocalyptic number.

2168243054542 is a deficient number, since it is larger than the sum of its proper divisors (1225738969298).

2168243054542 is a wasteful number, since it uses less digits than its factorization.

2168243054542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920667.

The product of its (nonzero) digits is 1843200, while the sum is 46.

The spelling of 2168243054542 in words is "two trillion, one hundred sixty-eight billion, two hundred forty-three million, fifty-four thousand, five hundred forty-two".