42885813649 has 8 divisors (see below), whose sum is σ = 49015588608. Its totient is φ = 36756846240.

The previous prime is 42885813643. The next prime is 42885813667. The reversal of 42885813649 is 94631858824.

42885813649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42885813649 - 2²⁵ = 42852259217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42885813593 and 42885813602.

It is not an unprimeable number, because it can be changed into a prime (42885813643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83452 + ... + 304525.

It is an arithmetic number, because the mean of its divisors is an integer number (6126948576).

Almost surely, 2^42885813649 is an apocalyptic number.

It is an amenable number.

42885813649 is a deficient number, since it is larger than the sum of its proper divisors (6129774959).

42885813649 is a wasteful number, since it uses less digits than its factorization.

42885813649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403775.

The product of its digits is 13271040, while the sum is 58.

The spelling of 42885813649 in words is "forty-two billion, eight hundred eighty-five million, eight hundred thirteen thousand, six hundred forty-nine".