4064640061 has 8 divisors (see below), whose sum is σ = 4154349024. Its totient is φ = 3975901200.

The previous prime is 4064640049. The next prime is 4064640071. The reversal of 4064640061 is 1600464604.

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

It is a cyclic number.

It is not a de Polignac number, because 4064640061 - 2⁷ = 4064639933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4064640071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234051 + ... + 250816.

It is an arithmetic number, because the mean of its divisors is an integer number (519293628).

Almost surely, 2^4064640061 is an apocalyptic number.

It is an amenable number.

4064640061 is a deficient number, since it is larger than the sum of its proper divisors (89708963).

4064640061 is a wasteful number, since it uses less digits than its factorization.

4064640061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485051.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 4064640061 is about 63754.5297292671. The cubic root of 4064640061 is about 1595.9062090902.

The spelling of 4064640061 in words is "four billion, sixty-four million, six hundred forty thousand, sixty-one".