8563116377 has 8 divisors (see below), whose sum is σ = 8915778312. Its totient is φ = 8217302400.

The previous prime is 8563116347. The next prime is 8563116379. The reversal of 8563116377 is 7736113658.

It can be written as a sum of positive squares in 4 ways, for example, as 86415616 + 8476700761 = 9296^2 + 92069^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 8563116377 - 2⁶ = 8563116313 is a prime.

It is a super-2 number, since 2×8563116377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8563116379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709438 + ... + 1714439.

It is an arithmetic number, because the mean of its divisors is an integer number (1114472289).

Almost surely, 2^8563116377 is an apocalyptic number.

It is an amenable number.

8563116377 is a deficient number, since it is larger than the sum of its proper divisors (352661935).

8563116377 is a wasteful number, since it uses less digits than its factorization.

8563116377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423979.

The product of its digits is 635040, while the sum is 47.

The square root of 8563116377 is about 92537.1081080450. The cubic root of 8563116377 is about 2045.8664578765.

The spelling of 8563116377 in words is "eight billion, five hundred sixty-three million, one hundred sixteen thousand, three hundred seventy-seven".