7616432321 has 16 divisors (see below), whose sum is σ = 8138180160. Its totient is φ = 7107508800.

The previous prime is 7616432311. The next prime is 7616432323. The reversal of 7616432321 is 1232346167.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7616432321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7616432323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367970 + ... + 388116.

It is an arithmetic number, because the mean of its divisors is an integer number (508636260).

Almost surely, 2^7616432321 is an apocalyptic number.

It is an amenable number.

7616432321 is a deficient number, since it is larger than the sum of its proper divisors (521747839).

7616432321 is a wasteful number, since it uses less digits than its factorization.

7616432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20464.

The product of its digits is 36288, while the sum is 35.

The square root of 7616432321 is about 87272.1738070045. The cubic root of 7616432321 is about 1967.5111208575.

Adding to 7616432321 its reverse (1232346167), we get a palindrome (8848778488).

The spelling of 7616432321 in words is "seven billion, six hundred sixteen million, four hundred thirty-two thousand, three hundred twenty-one".