42861805318998 has 160 divisors (see below), whose sum is σ = 102809858976000. Its totient is φ = 13316958627840.

The previous prime is 42861805318963. The next prime is 42861805319057. The reversal of 42861805318998 is 89981350816824.

42861805318998 is a `hidden beast` number, since 4 + 2 + 8 + 6 + 1 + 8 + 0 + 531 + 89 + 9 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 59206158 + ... + 59925726.

It is an arithmetic number, because the mean of its divisors is an integer number (642561618600).

Almost surely, 2^{42861805318998} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42861805318998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51404929488000).

42861805318998 is an abundant number, since it is smaller than the sum of its proper divisors (59948053657002).

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

42861805318998 is a wasteful number, since it uses less digits than its factorization.

42861805318998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720052 (or 720043 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 72.

The spelling of 42861805318998 in words is "forty-two trillion, eight hundred sixty-one billion, eight hundred five million, three hundred eighteen thousand, nine hundred ninety-eight".