4061578061 has 4 divisors (see below), whose sum is σ = 4078431324. Its totient is φ = 4044724800.

The previous prime is 4061578043. The next prime is 4061578117. The reversal of 4061578061 is 1608751604.

4061578061 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 3130962025 + 930616036 = 55955^2 + 30506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4061578061 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 (4061578561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8426270 + ... + 8426751.

It is an arithmetic number, because the mean of its divisors is an integer number (1019607831).

Almost surely, 2^4061578061 is an apocalyptic number.

It is an amenable number.

4061578061 is a deficient number, since it is larger than the sum of its proper divisors (16853263).

4061578061 is a wasteful number, since it uses less digits than its factorization.

4061578061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16853262.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 4061578061 is about 63730.5112250012. The cubic root of 4061578061 is about 1595.5053624112.

The spelling of 4061578061 in words is "four billion, sixty-one million, five hundred seventy-eight thousand, sixty-one".