5091784427 has 4 divisors (see below), whose sum is σ = 5391301176. Its totient is φ = 4792267680.

The previous prime is 5091784363. The next prime is 5091784493. The reversal of 5091784427 is 7244871905.

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 5091784427 - 2⁶ = 5091784363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5091784927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149758349 + ... + 149758382.

It is an arithmetic number, because the mean of its divisors is an integer number (1347825294).

Almost surely, 2^5091784427 is an apocalyptic number.

5091784427 is a deficient number, since it is larger than the sum of its proper divisors (299516749).

5091784427 is a wasteful number, since it uses less digits than its factorization.

5091784427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299516748.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 5091784427 is about 71356.7405855957. The cubic root of 5091784427 is about 1720.3758448315.

The spelling of 5091784427 in words is "five billion, ninety-one million, seven hundred eighty-four thousand, four hundred twenty-seven".