8572777664 has 56 divisors (see below), whose sum is σ = 18672218688. Its totient is φ = 3872759040.

The previous prime is 8572777651. The next prime is 8572777669. The reversal of 8572777664 is 4667772758.

It is not an unprimeable number, because it can be changed into a prime (8572777669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77399 + ... + 152105.

Almost surely, 2^8572777664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8572777664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9336109344).

8572777664 is an abundant number, since it is smaller than the sum of its proper divisors (10099441024).

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

8572777664 is a wasteful number, since it uses less digits than its factorization.

8572777664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74893 (or 74883 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 59.

The square root of 8572777664 is about 92589.2956231983. The cubic root of 8572777664 is about 2046.6355810666.

The spelling of 8572777664 in words is "eight billion, five hundred seventy-two million, seven hundred seventy-seven thousand, six hundred sixty-four".