4065521074 has 8 divisors (see below), whose sum is σ = 6099889068. Its totient is φ = 2032224720.

The previous prime is 4065521069. The next prime is 4065521081. The reversal of 4065521074 is 4701255604.

It can be written as a sum of positive squares in 2 ways, for example, as 3398073849 + 667447225 = 58293^2 + 25835^2 .

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

It is a super-2 number, since 2×4065521074² = 33056923206276226952, which contains 22 as substring.

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, 258357 + ... + 273640.

Almost surely, 2^4065521074 is an apocalyptic number.

4065521074 is a deficient number, since it is larger than the sum of its proper divisors (2034367994).

4065521074 is a wasteful number, since it uses less digits than its factorization.

4065521074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535820.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 4065521074 is about 63761.4387698396. The cubic root of 4065521074 is about 1596.0215052808.

Adding to 4065521074 its reverse (4701255604), we get a palindrome (8766776678).

The spelling of 4065521074 in words is "four billion, sixty-five million, five hundred twenty-one thousand, seventy-four".