5275428778 has 8 divisors (see below), whose sum is σ = 7919482500. Its totient is φ = 2635601280.

The previous prime is 5275428757. The next prime is 5275428799. The reversal of 5275428778 is 8778245725.

It is an interprime number because it is at equal distance from previous prime (5275428757) and next prime (5275428799).

It can be written as a sum of positive squares in 2 ways, for example, as 5236403769 + 39025009 = 72363^2 + 6247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 1053433 + ... + 1058428.

Almost surely, 2^5275428778 is an apocalyptic number.

5275428778 is a deficient number, since it is larger than the sum of its proper divisors (2644053722).

5275428778 is a wasteful number, since it uses less digits than its factorization.

5275428778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113112.

The product of its digits is 8780800, while the sum is 55.

The square root of 5275428778 is about 72632.1470011730. The cubic root of 5275428778 is about 1740.8148711081.

The spelling of 5275428778 in words is "five billion, two hundred seventy-five million, four hundred twenty-eight thousand, seven hundred seventy-eight".