42913894044 has 144 divisors (see below), whose sum is σ = 119042396928. Its totient is φ = 11994377472.

The previous prime is 42913894033. The next prime is 42913894103. The reversal of 42913894044 is 44049831924.

It is a junction number, because it is equal to n+sod(n) for n = 42913893984 and 42913894002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5022544 + ... + 5031080.

It is an arithmetic number, because the mean of its divisors is an integer number (826683312).

Almost surely, 2^42913894044 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 42913894044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59521198464).

42913894044 is an abundant number, since it is smaller than the sum of its proper divisors (76128502884).

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

42913894044 is a wasteful number, since it uses less digits than its factorization.

42913894044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744 (or 8735 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 42913894044 in words is "forty-two billion, nine hundred thirteen million, eight hundred ninety-four thousand, forty-four".