4613461891 has 2 divisors, whose sum is σ = 4613461892. Its totient is φ = 4613461890.

The previous prime is 4613461889. The next prime is 4613461981. The reversal of 4613461891 is 1981643164.

Together with next prime (4613461981) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4613461891 - 2¹ = 4613461889 is a prime.

Together with 4613461889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4613462891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2306730945 + 2306730946.

It is an arithmetic number, because the mean of its divisors is an integer number (2306730946).

Almost surely, 2^4613461891 is an apocalyptic number.

4613461891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4613461891 is an equidigital number, since it uses as much as digits as its factorization.

4613461891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 4613461891 is about 67922.4697062761. The cubic root of 4613461891 is about 1664.7242751797.

The spelling of 4613461891 in words is "four billion, six hundred thirteen million, four hundred sixty-one thousand, eight hundred ninety-one".