4945278349 has 6 divisors (see below), whose sum is σ = 5435719310. Its totient is φ = 4495707480.

The previous prime is 4945278341. The next prime is 4945278397. The reversal of 4945278349 is 9438725494.

It can be written as a sum of positive squares in only one way, i.e., 3828515625 + 1116762724 = 61875^2 + 33418^2 .

It is not a de Polignac number, because 4945278349 - 2³ = 4945278341 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4945278349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4945278341) 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 5 ways as a sum of consecutive naturals, for example, 20434914 + ... + 20435155.

Almost surely, 2^4945278349 is an apocalyptic number.

It is an amenable number.

4945278349 is a deficient number, since it is larger than the sum of its proper divisors (490440961).

4945278349 is a wasteful number, since it uses less digits than its factorization.

4945278349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40870091 (or 40870080 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The square root of 4945278349 is about 70322.6730791713. The cubic root of 4945278349 is about 1703.7148692550.

The spelling of 4945278349 in words is "four billion, nine hundred forty-five million, two hundred seventy-eight thousand, three hundred forty-nine".