8777640968 has 32 divisors (see below), whose sum is σ = 16651689600. Its totient is φ = 4337321472.

The previous prime is 8777640887. The next prime is 8777641001. The reversal of 8777640968 is 8690467778.

It is a super-2 number, since 2×8777640968² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8777640968.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556373 + ... + 571931.

It is an arithmetic number, because the mean of its divisors is an integer number (520365300).

Almost surely, 2^8777640968 is an apocalyptic number.

It is an amenable number.

8777640968 is a deficient number, since it is larger than the sum of its proper divisors (7874048632).

8777640968 is a wasteful number, since it uses less digits than its factorization.

8777640968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16389 (or 16385 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 62.

The square root of 8777640968 is about 93689.0653598380. The cubic root of 8777640968 is about 2062.8102036663.

The spelling of 8777640968 in words is "eight billion, seven hundred seventy-seven million, six hundred forty thousand, nine hundred sixty-eight".