4891386117 has 16 divisors (see below), whose sum is σ = 6608100800. Its totient is φ = 3217992192.

The previous prime is 4891386113. The next prime is 4891386131. The reversal of 4891386117 is 7116831984.

It is not a de Polignac number, because 4891386117 - 2² = 4891386113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4891386113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77478 + ... + 125640.

It is an arithmetic number, because the mean of its divisors is an integer number (413006300).

Almost surely, 2^4891386117 is an apocalyptic number.

It is an amenable number.

4891386117 is a deficient number, since it is larger than the sum of its proper divisors (1716714683).

4891386117 is a wasteful number, since it uses less digits than its factorization.

4891386117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48612.

The product of its digits is 290304, while the sum is 48.

The square root of 4891386117 is about 69938.4452000472. The cubic root of 4891386117 is about 1697.5033845223.

The spelling of 4891386117 in words is "four billion, eight hundred ninety-one million, three hundred eighty-six thousand, one hundred seventeen".