8452320777 has 6 divisors (see below), whose sum is σ = 12208907802. Its totient is φ = 5634880512.

The previous prime is 8452320769. The next prime is 8452320781. The reversal of 8452320777 is 7770232548.

It can be written as a sum of positive squares in only one way, i.e., 8365663296 + 86657481 = 91464^2 + 9309^2 .

It is not a de Polignac number, because 8452320777 - 2³ = 8452320769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8452320727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469573368 + ... + 469573385.

It is an arithmetic number, because the mean of its divisors is an integer number (2034817967).

Almost surely, 2^8452320777 is an apocalyptic number.

It is an amenable number.

8452320777 is a deficient number, since it is larger than the sum of its proper divisors (3756587025).

8452320777 is a wasteful number, since it uses less digits than its factorization.

8452320777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939146759 (or 939146756 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The square root of 8452320777 is about 91936.5040503499. The cubic root of 8452320777 is about 2037.0045086274.

The spelling of 8452320777 in words is "eight billion, four hundred fifty-two million, three hundred twenty thousand, seven hundred seventy-seven".