9428712080 has 20 divisors (see below), whose sum is σ = 21921755772. Its totient is φ = 3771484800.

The previous prime is 9428712071. The next prime is 9428712089. The reversal of 9428712080 is 802178249.

It is an interprime number because it is at equal distance from previous prime (9428712071) and next prime (9428712089).

It can be written as a sum of positive squares in 2 ways, for example, as 6544162816 + 2884549264 = 80896^2 + 53708^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×9428712080² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9428712089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58929371 + ... + 58929530.

Almost surely, 2^9428712080 is an apocalyptic number.

It is an amenable number.

9428712080 is an abundant number, since it is smaller than the sum of its proper divisors (12493043692).

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

9428712080 is a wasteful number, since it uses less digits than its factorization.

9428712080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117858914 (or 117858908 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 9428712080 is about 97101.5554973246. Note that the first 3 decimals coincide. The cubic root of 9428712080 is about 2112.6008881477.

The spelling of 9428712080 in words is "nine billion, four hundred twenty-eight million, seven hundred twelve thousand, eighty".