8779521412 has 48 divisors (see below), whose sum is σ = 16602894000. Its totient is φ = 4047335424.

The previous prime is 8779521263. The next prime is 8779521419. The reversal of 8779521412 is 2141259778.

It can be written as a sum of positive squares in 8 ways, for example, as 609892416 + 8169628996 = 24696^2 + 90386^2 .

It is not an unprimeable number, because it can be changed into a prime (8779521419) 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, 653014 + ... + 666322.

It is an arithmetic number, because the mean of its divisors is an integer number (345893625).

Almost surely, 2^8779521412 is an apocalyptic number.

It is an amenable number.

8779521412 is a deficient number, since it is larger than the sum of its proper divisors (7823372588).

8779521412 is a wasteful number, since it uses less digits than its factorization.

8779521412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13528 (or 13526 counting only the distinct ones).

The product of its digits is 282240, while the sum is 46.

The square root of 8779521412 is about 93699.1003798863. The cubic root of 8779521412 is about 2062.9574992065.

The spelling of 8779521412 in words is "eight billion, seven hundred seventy-nine million, five hundred twenty-one thousand, four hundred twelve".