3645112611 has 64 divisors (see below), whose sum is σ = 5894332416. Its totient is φ = 1958880000.

The previous prime is 3645112591. The next prime is 3645112619. The reversal of 3645112611 is 1162115463.

It is a happy number.

It is not a de Polignac number, because 3645112611 - 2¹⁴ = 3645096227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3645112619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12971791 + ... + 12972071.

It is an arithmetic number, because the mean of its divisors is an integer number (92098944).

Almost surely, 2^3645112611 is an apocalyptic number.

3645112611 is a deficient number, since it is larger than the sum of its proper divisors (2249219805).

3645112611 is a wasteful number, since it uses less digits than its factorization.

3645112611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its digits is 4320, while the sum is 30.

The square root of 3645112611 is about 60374.7679995543. The cubic root of 3645112611 is about 1538.9942005784.

The spelling of 3645112611 in words is "three billion, six hundred forty-five million, one hundred twelve thousand, six hundred eleven".