7289159920 has 160 divisors (see below), whose sum is σ = 19715309568. Its totient is φ = 2454810624.

The previous prime is 7289159909. The next prime is 7289159953. The reversal of 7289159920 is 299519827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8036107 + ... + 8037013.

Almost surely, 2^7289159920 is an apocalyptic number.

7289159920 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7289159920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9857654784).

7289159920 is an abundant number, since it is smaller than the sum of its proper divisors (12426149648).

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

7289159920 is a wasteful number, since it uses less digits than its factorization.

7289159920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 7289159920 is about 85376.5771157406. The cubic root of 7289159920 is about 1938.9167367891.

The spelling of 7289159920 in words is "seven billion, two hundred eighty-nine million, one hundred fifty-nine thousand, nine hundred twenty".