42311636065 has 4 divisors (see below), whose sum is σ = 50773963284. Its totient is φ = 33849308848.

The previous prime is 42311636021. The next prime is 42311636071. The reversal of 42311636065 is 56063611324.

42311636065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29066158144 + 13245477921 = 170488^2 + 115089^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311636065 - 2³³ = 33721701473 is a prime.

It is a Duffinian 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, 4231163602 + ... + 4231163611.

It is an arithmetic number, because the mean of its divisors is an integer number (12693490821).

Almost surely, 2^42311636065 is an apocalyptic number.

It is an amenable number.

42311636065 is a deficient number, since it is larger than the sum of its proper divisors (8462327219).

42311636065 is an equidigital number, since it uses as much as digits as its factorization.

42311636065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8462327218.

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 42311636065 in words is "forty-two billion, three hundred eleven million, six hundred thirty-six thousand, sixty-five".