2168374542 has 16 divisors (see below), whose sum is σ = 4525303680. Its totient is φ = 691365752.

The previous prime is 2168374517. The next prime is 2168374547. The reversal of 2168374542 is 2454738612.

It is a junction number, because it is equal to n+sod(n) for n = 2168374494 and 2168374503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168374547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7856292 + ... + 7856567.

It is an arithmetic number, because the mean of its divisors is an integer number (282831480).

Almost surely, 2^2168374542 is an apocalyptic number.

2168374542 is an abundant number, since it is smaller than the sum of its proper divisors (2356929138).

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

2168374542 is a wasteful number, since it uses less digits than its factorization.

2168374542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712887.

The product of its digits is 322560, while the sum is 42.

The square root of 2168374542 is about 46565.8087227098. The cubic root of 2168374542 is about 1294.3292525816.

The spelling of 2168374542 in words is "two billion, one hundred sixty-eight million, three hundred seventy-four thousand, five hundred forty-two".