5278178227 has 6 divisors (see below), whose sum is σ = 6139921668. Its totient is φ = 4524152724.

The previous prime is 5278178209. The next prime is 5278178249. The reversal of 5278178227 is 7228718725.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5278178227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 107717923 = 5278178227 / (5 + 2 + 7 + 8 + 1 + 7 + 8 + 2 + 2 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5278178267) 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 5 ways as a sum of consecutive naturals, for example, 53858913 + ... + 53859010.

It is an arithmetic number, because the mean of its divisors is an integer number (1023320278).

Almost surely, 2^5278178227 is an apocalyptic number.

5278178227 is a deficient number, since it is larger than the sum of its proper divisors (861743441).

5278178227 is a wasteful number, since it uses less digits than its factorization.

5278178227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107717937 (or 107717930 counting only the distinct ones).

The product of its digits is 878080, while the sum is 49.

The square root of 5278178227 is about 72651.0717539666. The cubic root of 5278178227 is about 1741.1172446619.

The spelling of 5278178227 in words is "five billion, two hundred seventy-eight million, one hundred seventy-eight thousand, two hundred twenty-seven".