7909065020 has 96 divisors (see below), whose sum is σ = 18306086400. Its totient is φ = 2858575104.

The previous prime is 7909065019. The next prime is 7909065037. The reversal of 7909065020 is 205609097.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910337 + ... + 918983.

It is an arithmetic number, because the mean of its divisors is an integer number (190688400).

Almost surely, 2^7909065020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7909065020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9153043200).

7909065020 is an abundant number, since it is smaller than the sum of its proper divisors (10397021380).

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

7909065020 is a wasteful number, since it uses less digits than its factorization.

7909065020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8787 (or 8785 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 7909065020 is about 88932.9242744216. The cubic root of 7909065020 is about 1992.3931898998.

The spelling of 7909065020 in words is "seven billion, nine hundred nine million, sixty-five thousand, twenty".