42878764222044 has 12 divisors (see below), whose sum is σ = 100050449851464. Its totient is φ = 14292921407344.

The previous prime is 42878764222013. The next prime is 42878764222097. The reversal of 42878764222044 is 44022246787824.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1786615175907 + ... + 1786615175930.

It is an arithmetic number, because the mean of its divisors is an integer number (8337537487622).

Almost surely, 2^{42878764222044} is an apocalyptic number.

It is an amenable number.

42878764222044 is an abundant number, since it is smaller than the sum of its proper divisors (57171685629420).

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

42878764222044 is a wasteful number, since it uses less digits than its factorization.

42878764222044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3573230351844 (or 3573230351842 counting only the distinct ones).

The product of its (nonzero) digits is 77070336, while the sum is 60.

The spelling of 42878764222044 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred sixty-four million, two hundred twenty-two thousand, forty-four".