7827530856 has 32 divisors (see below), whose sum is σ = 20097716640. Its totient is φ = 2538658368.

The previous prime is 7827530831. The next prime is 7827530861. The reversal of 7827530856 is 6580357287.

It is a super-2 number, since 2×7827530856² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7827530799 and 7827530808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406506 + ... + 4408281.

It is an arithmetic number, because the mean of its divisors is an integer number (628053645).

Almost surely, 2^7827530856 is an apocalyptic number.

It is an amenable number.

7827530856 is an abundant number, since it is smaller than the sum of its proper divisors (12270185784).

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

7827530856 is a wasteful number, since it uses less digits than its factorization.

7827530856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8814833 (or 8814829 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The square root of 7827530856 is about 88473.3341521614. The cubic root of 7827530856 is about 1985.5230328883.

The spelling of 7827530856 in words is "seven billion, eight hundred twenty-seven million, five hundred thirty thousand, eight hundred fifty-six".