7786650564 has 243 divisors, whose sum is σ = 25299639183. Its totient is φ = 2011917600.

The previous prime is 7786650551. The next prime is 7786650583. The reversal of 7786650564 is 4650566877.

The square root of 7786650564 is 88242.

It is a perfect power (a square), and thus also a powerful number.

7786650564 is a `hidden beast` number, since 7 + 78 + 6 + 6 + 5 + 0 + 564 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 7786650564.

It is an unprimeable number.

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 80 ways as a sum of consecutive naturals, for example, 40767709 + ... + 40767899.

Almost surely, 2^7786650564 is an apocalyptic number.

7786650564 is the 88242-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7786650564

7786650564 is an abundant number, since it is smaller than the sum of its proper divisors (17512988619).

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

7786650564 is a wasteful number, since it uses less digits than its factorization.

7786650564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The cubic root of 7786650564 is about 1982.0604476849.

The spelling of 7786650564 in words is "seven billion, seven hundred eighty-six million, six hundred fifty thousand, five hundred sixty-four".