42064721146 has 16 divisors (see below), whose sum is σ = 72277498944. Its totient is φ = 17986100544.

The previous prime is 42064721113. The next prime is 42064721177. The reversal of 42064721146 is 64112746024.

42064721146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3463480 + ... + 3475603.

It is an arithmetic number, because the mean of its divisors is an integer number (4517343684).

Almost surely, 2^42064721146 is an apocalyptic number.

42064721146 is a deficient number, since it is larger than the sum of its proper divisors (30212777798).

42064721146 is a wasteful number, since it uses less digits than its factorization.

42064721146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6939525.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 42064721146 in words is "forty-two billion, sixty-four million, seven hundred twenty-one thousand, one hundred forty-six".