7089645820 has 24 divisors (see below), whose sum is σ = 14901490800. Its totient is φ = 2833337472.

The previous prime is 7089645799. The next prime is 7089645821. The reversal of 7089645820 is 285469807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7089645821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134410 + ... + 179569.

It is an arithmetic number, because the mean of its divisors is an integer number (620895450).

Almost surely, 2^7089645820 is an apocalyptic number.

It is an amenable number.

7089645820 is an abundant number, since it is smaller than the sum of its proper divisors (7811844980).

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

7089645820 is a wasteful number, since it uses less digits than its factorization.

7089645820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315117 (or 315115 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 7089645820 is about 84200.0345605630. The cubic root of 7089645820 is about 1921.0625827625.

The spelling of 7089645820 in words is "seven billion, eighty-nine million, six hundred forty-five thousand, eight hundred twenty".