2471728520 has 16 divisors (see below), whose sum is σ = 5561389260. Its totient is φ = 988691392.

The previous prime is 2471728471. The next prime is 2471728573. The reversal of 2471728520 is 258271742.

It can be written as a sum of positive squares in 2 ways, for example, as 2445698116 + 26030404 = 49454^2 + 5102^2 .

It is a super-2 number, since 2×2471728520² = 12218883753162780800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30896567 + ... + 30896646.

Almost surely, 2^2471728520 is an apocalyptic number.

2471728520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2471728520 is an abundant number, since it is smaller than the sum of its proper divisors (3089660740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2471728520 is a wasteful number, since it uses less digits than its factorization.

2471728520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61793224 (or 61793220 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The square root of 2471728520 is about 49716.4813718751. The cubic root of 2471728520 is about 1352.0733609225.

The spelling of 2471728520 in words is "two billion, four hundred seventy-one million, seven hundred twenty-eight thousand, five hundred twenty".