42861307944 has 256 divisors, whose sum is σ = 142365081600. Its totient is φ = 10439396352.

The previous prime is 42861307913. The next prime is 42861307963. The reversal of 42861307944 is 44970316824.

It is a junction number, because it is equal to n+sod(n) for n = 42861307893 and 42861307902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1442017 + ... + 1471439.

It is an arithmetic number, because the mean of its divisors is an integer number (556113600).

Almost surely, 2^42861307944 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 42861307944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71182540800).

42861307944 is an abundant number, since it is smaller than the sum of its proper divisors (99503773656).

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

42861307944 is a wasteful number, since it uses less digits than its factorization.

42861307944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29504 (or 29500 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 42861307944 in words is "forty-two billion, eight hundred sixty-one million, three hundred seven thousand, nine hundred forty-four".