4609161081 has 48 divisors (see below), whose sum is σ = 7886885760. Its totient is φ = 2537902080.

The previous prime is 4609161049. The next prime is 4609161101. The reversal of 4609161081 is 1801619064.

It is a happy number.

4609161081 is a `hidden beast` number, since 460 + 91 + 6 + 108 + 1 = 666.

It is not a de Polignac number, because 4609161081 - 2⁵ = 4609161049 is a prime.

It is a super-2 number, since 2×4609161081² = 42488731741210177122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4609162081) 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, 1026361 + ... + 1030841.

It is an arithmetic number, because the mean of its divisors is an integer number (164310120).

Almost surely, 2^4609161081 is an apocalyptic number.

It is an amenable number.

4609161081 is a deficient number, since it is larger than the sum of its proper divisors (3277724679).

4609161081 is a wasteful number, since it uses less digits than its factorization.

4609161081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5086 (or 5083 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 4609161081 is about 67890.8026245087. The cubic root of 4609161081 is about 1664.2068120865.

The spelling of 4609161081 in words is "four billion, six hundred nine million, one hundred sixty-one thousand, eighty-one".