42064421777 has 8 divisors (see below), whose sum is σ = 48075057792. Its totient is φ = 36054144000.

The previous prime is 42064421741. The next prime is 42064421807. The reversal of 42064421777 is 77712446024.

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

It is not a de Polignac number, because 42064421777 - 2²⁸ = 41795986321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42064421717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245777 + ... + 380177.

It is an arithmetic number, because the mean of its divisors is an integer number (6009382224).

Almost surely, 2^42064421777 is an apocalyptic number.

It is an amenable number.

42064421777 is a deficient number, since it is larger than the sum of its proper divisors (6010636015).

42064421777 is a wasteful number, since it uses less digits than its factorization.

42064421777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179119.

The product of its (nonzero) digits is 526848, while the sum is 44.

The spelling of 42064421777 in words is "forty-two billion, sixty-four million, four hundred twenty-one thousand, seven hundred seventy-seven".