7827835880 has 32 divisors (see below), whose sum is σ = 17643207240. Its totient is φ = 3125698560.

The previous prime is 7827835843. The next prime is 7827835889. The reversal of 7827835880 is 885387287.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7483288036 + 344547844 = 86506^2 + 18562^2 .

It is a super-2 number, since 2×7827835880² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7827835889) 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 7 ways as a sum of consecutive naturals, for example, 146501 + ... + 192660.

Almost surely, 2^7827835880 is an apocalyptic number.

It is an amenable number.

7827835880 is an abundant number, since it is smaller than the sum of its proper divisors (9815371360).

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

7827835880 is a wasteful number, since it uses less digits than its factorization.

7827835880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339749 (or 339745 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 56.

The square root of 7827835880 is about 88475.0579542054. The cubic root of 7827835880 is about 1985.5488232396.

The spelling of 7827835880 in words is "seven billion, eight hundred twenty-seven million, eight hundred thirty-five thousand, eight hundred eighty".