7321089690 has 128 divisors (see below), whose sum is σ = 20700288000. Its totient is φ = 1836053568.

The previous prime is 7321089679. The next prime is 7321089731. The reversal of 7321089690 is 969801237.

It is a super-2 number, since 2×7321089690² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 707937 + ... + 718203.

It is an arithmetic number, because the mean of its divisors is an integer number (161721000).

Almost surely, 2^7321089690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7321089690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10350144000).

7321089690 is an abundant number, since it is smaller than the sum of its proper divisors (13379198310).

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

7321089690 is a wasteful number, since it uses less digits than its factorization.

7321089690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10441 (or 10435 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 7321089690 is about 85563.3665186217. The cubic root of 7321089690 is about 1941.7437195461.

The spelling of 7321089690 in words is "seven billion, three hundred twenty-one million, eighty-nine thousand, six hundred ninety".