4051181061 has 48 divisors (see below), whose sum is σ = 6347927040. Its totient is φ = 2576985840.

The previous prime is 4051181021. The next prime is 4051181111. The reversal of 4051181061 is 1601811504.

4051181061 is a `hidden beast` number, since 40 + 511 + 8 + 106 + 1 = 666.

It is not a de Polignac number, because 4051181061 - 2¹⁸ = 4050918917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051181011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3459006 + ... + 3460176.

It is an arithmetic number, because the mean of its divisors is an integer number (132248480).

Almost surely, 2^4051181061 is an apocalyptic number.

It is an amenable number.

4051181061 is a deficient number, since it is larger than the sum of its proper divisors (2296745979).

4051181061 is a wasteful number, since it uses less digits than its factorization.

4051181061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 4051181061 is about 63648.8889219600. Note that the first 3 decimals coincide. The cubic root of 4051181061 is about 1594.1427849605.

Adding to 4051181061 its reverse (1601811504), we get a palindrome (5652992565).

The spelling of 4051181061 in words is "four billion, fifty-one million, one hundred eighty-one thousand, sixty-one".