2478209528 has 32 divisors (see below), whose sum is σ = 4704750000. Its totient is φ = 1223673600.

The previous prime is 2478209519. The next prime is 2478209537. The reversal of 2478209528 is 8259028742.

It is an interprime number because it is at equal distance from previous prime (2478209519) and next prime (2478209537).

It is a super-2 number, since 2×2478209528² = 12283044929339965568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 326723 + ... + 334221.

Almost surely, 2^2478209528 is an apocalyptic number.

It is an amenable number.

2478209528 is a deficient number, since it is larger than the sum of its proper divisors (2226540472).

2478209528 is a wasteful number, since it uses less digits than its factorization.

2478209528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015 (or 8011 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 2478209528 is about 49781.6183746571. The cubic root of 2478209528 is about 1353.2540664475.

The spelling of 2478209528 in words is "two billion, four hundred seventy-eight million, two hundred nine thousand, five hundred twenty-eight".