4891061345 has 16 divisors (see below), whose sum is σ = 6010329600. Its totient is φ = 3819261504.

The previous prime is 4891061333. The next prime is 4891061353. The reversal of 4891061345 is 5431601984.

It is a cyclic number.

It is not a de Polignac number, because 4891061345 - 2⁶ = 4891061281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59756 + ... + 115554.

It is an arithmetic number, because the mean of its divisors is an integer number (375645600).

Almost surely, 2^4891061345 is an apocalyptic number.

It is an amenable number.

4891061345 is a deficient number, since it is larger than the sum of its proper divisors (1119268255).

4891061345 is a wasteful number, since it uses less digits than its factorization.

4891061345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56224.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 4891061345 is about 69936.1233197837. The cubic root of 4891061345 is about 1697.4658141378.

The spelling of 4891061345 in words is "four billion, eight hundred ninety-one million, sixty-one thousand, three hundred forty-five".