8564684956 has 12 divisors (see below), whose sum is σ = 15505033320. Its totient is φ = 4134675440.

The previous prime is 8564684951. The next prime is 8564684993. The reversal of 8564684956 is 6594864658.

It is a junction number, because it is equal to n+sod(n) for n = 8564684894 and 8564684903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8564684951) 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, 36916630 + ... + 36916861.

It is an arithmetic number, because the mean of its divisors is an integer number (1292086110).

Almost surely, 2^8564684956 is an apocalyptic number.

It is an amenable number.

8564684956 is a deficient number, since it is larger than the sum of its proper divisors (6940348364).

8564684956 is a wasteful number, since it uses less digits than its factorization.

8564684956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73833524 (or 73833522 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 61.

The square root of 8564684956 is about 92545.5831252902. The cubic root of 8564684956 is about 2045.9913698476.

The spelling of 8564684956 in words is "eight billion, five hundred sixty-four million, six hundred eighty-four thousand, nine hundred fifty-six".