8777876641 has 16 divisors (see below), whose sum is σ = 9110707200. Its totient is φ = 8448298560.

The previous prime is 8777876617. The next prime is 8777876647. The reversal of 8777876641 is 1466787778.

It is not a de Polignac number, because 8777876641 - 2¹¹ = 8777874593 is a prime.

It is a super-2 number, since 2×8777876641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8777876641.

It is not an unprimeable number, because it can be changed into a prime (8777876647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5441151 + ... + 5442763.

It is an arithmetic number, because the mean of its divisors is an integer number (569419200).

Almost surely, 2^8777876641 is an apocalyptic number.

It is an amenable number.

8777876641 is a deficient number, since it is larger than the sum of its proper divisors (332830559).

8777876641 is a wasteful number, since it uses less digits than its factorization.

8777876641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its digits is 22127616, while the sum is 61.

The square root of 8777876641 is about 93690.3230915552. The cubic root of 8777876641 is about 2062.8286651307.

The spelling of 8777876641 in words is "eight billion, seven hundred seventy-seven million, eight hundred seventy-six thousand, six hundred forty-one".