42122635064 has 8 divisors (see below), whose sum is σ = 78979940760. Its totient is φ = 21061317528.

The previous prime is 42122635043. The next prime is 42122635069. The reversal of 42122635064 is 46053622124.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42122635069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2632664684 + ... + 2632664699.

It is an arithmetic number, because the mean of its divisors is an integer number (9872492595).

Almost surely, 2^42122635064 is an apocalyptic number.

It is an amenable number.

42122635064 is a deficient number, since it is larger than the sum of its proper divisors (36857305696).

42122635064 is a wasteful number, since it uses less digits than its factorization.

42122635064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265329389 (or 5265329385 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 42122635064 in words is "forty-two billion, one hundred twenty-two million, six hundred thirty-five thousand, sixty-four".