5619478891 has 4 divisors (see below), whose sum is σ = 6051746512. Its totient is φ = 5187211272.

The previous prime is 5619478889. The next prime is 5619478919. The reversal of 5619478891 is 1988749165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5619478891 - 2¹ = 5619478889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5619478391) 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 in 3 ways as a sum of consecutive naturals, for example, 216133791 + ... + 216133816.

It is an arithmetic number, because the mean of its divisors is an integer number (1512936628).

Almost surely, 2^5619478891 is an apocalyptic number.

5619478891 is a deficient number, since it is larger than the sum of its proper divisors (432267621).

5619478891 is a wasteful number, since it uses less digits than its factorization.

5619478891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432267620.

The product of its digits is 4354560, while the sum is 58.

The square root of 5619478891 is about 74963.1835703367. The cubic root of 5619478891 is about 1777.8645952306.

The spelling of 5619478891 in words is "five billion, six hundred nineteen million, four hundred seventy-eight thousand, eight hundred ninety-one".