4891105791 has 24 divisors (see below), whose sum is σ = 8300060496. Its totient is φ = 2736282240.

The previous prime is 4891105789. The next prime is 4891105859. The reversal of 4891105791 is 1975011984.

It is a happy number.

4891105791 is a `hidden beast` number, since 489 + 110 + 57 + 9 + 1 = 666.

It is not a de Polignac number, because 4891105791 - 2¹ = 4891105789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891105711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1898910 + ... + 1901483.

It is an arithmetic number, because the mean of its divisors is an integer number (345835854).

Almost surely, 2^4891105791 is an apocalyptic number.

4891105791 is a deficient number, since it is larger than the sum of its proper divisors (3408954705).

4891105791 is a wasteful number, since it uses less digits than its factorization.

4891105791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800423 (or 3800420 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The square root of 4891105791 is about 69936.4410804553. The cubic root of 4891105791 is about 1697.4709558533.

The spelling of 4891105791 in words is "four billion, eight hundred ninety-one million, one hundred five thousand, seven hundred ninety-one".