8505838766 has 8 divisors (see below), whose sum is σ = 12938459184. Its totient is φ = 4193019040.

The previous prime is 8505838763. The next prime is 8505838787. The reversal of 8505838766 is 6678385058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8505838766² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505838763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29949995 + ... + 29950278.

It is an arithmetic number, because the mean of its divisors is an integer number (1617307398).

Almost surely, 2^8505838766 is an apocalyptic number.

8505838766 is a deficient number, since it is larger than the sum of its proper divisors (4432620418).

8505838766 is a wasteful number, since it uses less digits than its factorization.

8505838766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59900346.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The square root of 8505838766 is about 92227.1042915259. The cubic root of 8505838766 is about 2041.2947347687.

The spelling of 8505838766 in words is "eight billion, five hundred five million, eight hundred thirty-eight thousand, seven hundred sixty-six".