2471742856 has 32 divisors (see below), whose sum is σ = 5173423200. Its totient is φ = 1097389440.

The previous prime is 2471742827. The next prime is 2471742859. The reversal of 2471742856 is 6582471742.

It is a super-2 number, since 2×2471742856² = 12219025492374073472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2471742859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322821 + ... + 330388.

It is an arithmetic number, because the mean of its divisors is an integer number (161669475).

Almost surely, 2^2471742856 is an apocalyptic number.

It is an amenable number.

2471742856 is an abundant number, since it is smaller than the sum of its proper divisors (2701680344).

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

2471742856 is a wasteful number, since it uses less digits than its factorization.

2471742856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653269 (or 653265 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 2471742856 is about 49716.6255492064. The cubic root of 2471742856 is about 1352.0759749213.

The spelling of 2471742856 in words is "two billion, four hundred seventy-one million, seven hundred forty-two thousand, eight hundred fifty-six".