42894706668 has 96 divisors (see below), whose sum is σ = 110886639360. Its totient is φ = 12904882320.

The previous prime is 42894706649. The next prime is 42894706703. The reversal of 42894706668 is 86660749824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308594943 + ... + 308595081.

It is an arithmetic number, because the mean of its divisors is an integer number (1155069160).

Almost surely, 2^42894706668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42894706668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55443319680).

42894706668 is an abundant number, since it is smaller than the sum of its proper divisors (67991932692).

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

42894706668 is an frugal number, since it uses more digits than its factorization.

42894706668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 42894706668 in words is "forty-two billion, eight hundred ninety-four million, seven hundred six thousand, six hundred sixty-eight".