2478738573 has 6 divisors (see below), whose sum is σ = 3580400174. Its totient is φ = 1652492376.

The previous prime is 2478738571. The next prime is 2478738607. The reversal of 2478738573 is 3758378742.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2453518089 + 25220484 = 49533^2 + 5022^2 .

It is not a de Polignac number, because 2478738573 - 2¹ = 2478738571 is a prime.

It is a super-2 number, since 2×2478738573² = 12288289826556152658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478738571) 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, 137707690 + ... + 137707707.

Almost surely, 2^2478738573 is an apocalyptic number.

It is an amenable number.

2478738573 is a deficient number, since it is larger than the sum of its proper divisors (1101661601).

2478738573 is a wasteful number, since it uses less digits than its factorization.

2478738573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275415403 (or 275415400 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The square root of 2478738573 is about 49786.9317492050. The cubic root of 2478738573 is about 1353.3503565782.

The spelling of 2478738573 in words is "two billion, four hundred seventy-eight million, seven hundred thirty-eight thousand, five hundred seventy-three".