42644522880 has 192 divisors, whose sum is σ = 147782859120. Its totient is φ = 11331256320.

The previous prime is 42644522771. The next prime is 42644522903. The reversal of 42644522880 is 8822544624.

42644522880 is a `hidden beast` number, since 4 + 2 + 6 + 44 + 522 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1617000 + ... + 1643160.

Almost surely, 2^42644522880 is an apocalyptic number.

42644522880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42644522880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73891429560).

42644522880 is an abundant number, since it is smaller than the sum of its proper divisors (105138336240).

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

42644522880 is a wasteful number, since it uses less digits than its factorization.

42644522880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26469 (or 26454 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 45.

The spelling of 42644522880 in words is "forty-two billion, six hundred forty-four million, five hundred twenty-two thousand, eight hundred eighty".