8921506766 has 16 divisors (see below), whose sum is σ = 13716939600. Its totient is φ = 4349325120.

The previous prime is 8921506757. The next prime is 8921506817. The reversal of 8921506766 is 6676051298.

8921506766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 107300 + ... + 171336.

It is an arithmetic number, because the mean of its divisors is an integer number (857308725).

Almost surely, 2^8921506766 is an apocalyptic number.

8921506766 is a deficient number, since it is larger than the sum of its proper divisors (4795432834).

8921506766 is a wasteful number, since it uses less digits than its factorization.

8921506766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65779.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 8921506766 is about 94453.7281741700. The cubic root of 8921506766 is about 2074.0190275576.

The spelling of 8921506766 in words is "eight billion, nine hundred twenty-one million, five hundred six thousand, seven hundred sixty-six".