5818043961 has 6 divisors (see below), whose sum is σ = 8403841290. Its totient is φ = 3878695968.

The previous prime is 5818043939. The next prime is 5818043963. The reversal of 5818043961 is 1693408185.

5818043961 is a `hidden beast` number, since 5 + 81 + 80 + 439 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4981677561 + 836366400 = 70581^2 + 28920^2 .

It is not a de Polignac number, because 5818043961 - 2¹⁴ = 5818027577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5818043963) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 323224656 + ... + 323224673.

It is an arithmetic number, because the mean of its divisors is an integer number (1400640215).

Almost surely, 2^5818043961 is an apocalyptic number.

It is an amenable number.

5818043961 is a deficient number, since it is larger than the sum of its proper divisors (2585797329).

5818043961 is a wasteful number, since it uses less digits than its factorization.

5818043961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646449335 (or 646449332 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5818043961 is about 76276.1034728440. The cubic root of 5818043961 is about 1798.5630466933.

The spelling of 5818043961 in words is "five billion, eight hundred eighteen million, forty-three thousand, nine hundred sixty-one".