42645133888 has 112 divisors (see below), whose sum is σ = 101225689344. Its totient is φ = 17428561920.

The previous prime is 42645133873. The next prime is 42645133891. The reversal of 42645133888 is 88833154624.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466308 + ... + 3478588.

Almost surely, 2^42645133888 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 42645133888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50612844672).

42645133888 is an abundant number, since it is smaller than the sum of its proper divisors (58580555456).

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

42645133888 is a wasteful number, since it uses less digits than its factorization.

42645133888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12660 (or 12650 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 52.

The spelling of 42645133888 in words is "forty-two billion, six hundred forty-five million, one hundred thirty-three thousand, eight hundred eighty-eight".