5378178677 has 4 divisors (see below), whose sum is σ = 5433623916. Its totient is φ = 5322733440.

The previous prime is 5378178661. The next prime is 5378178679. The reversal of 5378178677 is 7768718735.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3087024721 + 2291153956 = 55561^2 + 47866^2 .

It is a cyclic number.

It is not a de Polignac number, because 5378178677 - 2⁴ = 5378178661 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 (5378178679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27722474 + ... + 27722667.

It is an arithmetic number, because the mean of its divisors is an integer number (1358405979).

Almost surely, 2^5378178677 is an apocalyptic number.

It is an amenable number.

5378178677 is a deficient number, since it is larger than the sum of its proper divisors (55445239).

5378178677 is an equidigital number, since it uses as much as digits as its factorization.

5378178677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55445238.

The product of its digits is 13829760, while the sum is 59.

The square root of 5378178677 is about 73336.0666861811. The cubic root of 5378178677 is about 1752.0442697690.

The spelling of 5378178677 in words is "five billion, three hundred seventy-eight million, one hundred seventy-eight thousand, six hundred seventy-seven".