8676779620 has 12 divisors (see below), whose sum is σ = 18221237244. Its totient is φ = 3470711840.

The previous prime is 8676779581. The next prime is 8676779621. The reversal of 8676779620 is 269776768.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6235629156 + 2441150464 = 78966^2 + 49408^2 .

It is not an unprimeable number, because it can be changed into a prime (8676779621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216919471 + ... + 216919510.

It is an arithmetic number, because the mean of its divisors is an integer number (1518436437).

Almost surely, 2^8676779620 is an apocalyptic number.

It is an amenable number.

8676779620 is an abundant number, since it is smaller than the sum of its proper divisors (9544457624).

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

8676779620 is a wasteful number, since it uses less digits than its factorization.

8676779620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433838990 (or 433838988 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 58.

The square root of 8676779620 is about 93149.2330617918. The cubic root of 8676779620 is about 2054.8786931391.

The spelling of 8676779620 in words is "eight billion, six hundred seventy-six million, seven hundred seventy-nine thousand, six hundred twenty".