42064915578 has 16 divisors (see below), whose sum is σ = 96148378560. Its totient is φ = 12018547296.

The previous prime is 42064915561. The next prime is 42064915601. The reversal of 42064915578 is 87551946024.

It is a self number, because there is not a number n which added to its sum of digits gives 42064915578.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 500772763 + ... + 500772846.

It is an arithmetic number, because the mean of its divisors is an integer number (6009273660).

Almost surely, 2^42064915578 is an apocalyptic number.

42064915578 is an abundant number, since it is smaller than the sum of its proper divisors (54083462982).

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

42064915578 is a wasteful number, since it uses less digits than its factorization.

42064915578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001545621.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 42064915578 in words is "forty-two billion, sixty-four million, nine hundred fifteen thousand, five hundred seventy-eight".