5478712819 has 4 divisors (see below), whose sum is σ = 5540271480. Its totient is φ = 5417154160.

The previous prime is 5478712807. The next prime is 5478712931. The reversal of 5478712819 is 9182178745.

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 5478712819 - 2²⁵ = 5445158387 is a prime.

It is a super-2 number, since 2×5478712819² = 60032588306149853522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478713819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30779197 + ... + 30779374.

It is an arithmetic number, because the mean of its divisors is an integer number (1385067870).

Almost surely, 2^5478712819 is an apocalyptic number.

5478712819 is a deficient number, since it is larger than the sum of its proper divisors (61558661).

5478712819 is an equidigital number, since it uses as much as digits as its factorization.

5478712819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61558660.

The product of its digits is 1128960, while the sum is 52.

The square root of 5478712819 is about 74018.3275885101. The cubic root of 5478712819 is about 1762.8939153007.

The spelling of 5478712819 in words is "five billion, four hundred seventy-eight million, seven hundred twelve thousand, eight hundred nineteen".