7822516880 has 20 divisors (see below), whose sum is σ = 18187351932. Its totient is φ = 3129006720.

The previous prime is 7822516817. The next prime is 7822516883. The reversal of 7822516880 is 886152287.

It can be written as a sum of positive squares in 2 ways, for example, as 2945449984 + 4877066896 = 54272^2 + 69836^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×7822516880² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7822516883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48890651 + ... + 48890810.

Almost surely, 2^7822516880 is an apocalyptic number.

It is an amenable number.

7822516880 is an abundant number, since it is smaller than the sum of its proper divisors (10364835052).

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

7822516880 is a wasteful number, since it uses less digits than its factorization.

7822516880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97781474 (or 97781468 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 7822516880 is about 88444.9935270505. The cubic root of 7822516880 is about 1985.0989957544.

The spelling of 7822516880 in words is "seven billion, eight hundred twenty-two million, five hundred sixteen thousand, eight hundred eighty".