8511779660 has 12 divisors (see below), whose sum is σ = 17874737328. Its totient is φ = 3404711856.

The previous prime is 8511779659. The next prime is 8511779681. The reversal of 8511779660 is 669771158.

It is a junction number, because it is equal to n+sod(n) for n = 8511779599 and 8511779608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212794472 + ... + 212794511.

It is an arithmetic number, because the mean of its divisors is an integer number (1489561444).

Almost surely, 2^8511779660 is an apocalyptic number.

It is an amenable number.

8511779660 is an abundant number, since it is smaller than the sum of its proper divisors (9362957668).

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

8511779660 is a wasteful number, since it uses less digits than its factorization.

8511779660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425588992 (or 425588990 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 8511779660 is about 92259.3066308218. The cubic root of 8511779660 is about 2041.7698708754.

The spelling of 8511779660 in words is "eight billion, five hundred eleven million, seven hundred seventy-nine thousand, six hundred sixty".