8479505020 has 48 divisors (see below), whose sum is σ = 21007300608. Its totient is φ = 2813474880.

The previous prime is 8479505017. The next prime is 8479505057. The reversal of 8479505020 is 205059748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 972562 + ... + 981241.

It is an arithmetic number, because the mean of its divisors is an integer number (437652096).

Almost surely, 2^8479505020 is an apocalyptic number.

It is an amenable number.

8479505020 is an abundant number, since it is smaller than the sum of its proper divisors (12527795588).

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

8479505020 is a wasteful number, since it uses less digits than its factorization.

8479505020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953850 (or 1953848 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 8479505020 is about 92084.2278568920. The cubic root of 8479505020 is about 2039.1859673464.

The spelling of 8479505020 in words is "eight billion, four hundred seventy-nine million, five hundred five thousand, twenty".