4277478505 has 4 divisors (see below), whose sum is σ = 5132974212. Its totient is φ = 3421982800.

The previous prime is 4277478503. The next prime is 4277478547. The reversal of 4277478505 is 5058747724.

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 459845136 + 3817633369 = 21444^2 + 61787^2 .

It is not a de Polignac number, because 4277478505 - 2¹ = 4277478503 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4277478503) 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 3 ways as a sum of consecutive naturals, for example, 427747846 + ... + 427747855.

It is an arithmetic number, because the mean of its divisors is an integer number (1283243553).

Almost surely, 2^4277478505 is an apocalyptic number.

It is an amenable number.

4277478505 is a deficient number, since it is larger than the sum of its proper divisors (855495707).

4277478505 is an equidigital number, since it uses as much as digits as its factorization.

4277478505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855495706.

The product of its (nonzero) digits is 2195200, while the sum is 49.

The square root of 4277478505 is about 65402.4350081860. The cubic root of 4277478505 is about 1623.2893720928.

The spelling of 4277478505 in words is "four billion, two hundred seventy-seven million, four hundred seventy-eight thousand, five hundred five".