7660771321 has 16 divisors (see below), whose sum is σ = 9057541248. Its totient is φ = 6342768000.

The previous prime is 7660771273. The next prime is 7660771333. The reversal of 7660771321 is 1231770667.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7660771321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7660771361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103155 + ... + 161128.

It is an arithmetic number, because the mean of its divisors is an integer number (566096328).

Almost surely, 2^7660771321 is an apocalyptic number.

It is an amenable number.

7660771321 is a deficient number, since it is larger than the sum of its proper divisors (1396769927).

7660771321 is a wasteful number, since it uses less digits than its factorization.

7660771321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264432.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 7660771321 is about 87525.8323068110. The cubic root of 7660771321 is about 1971.3216861023.

The spelling of 7660771321 in words is "seven billion, six hundred sixty million, seven hundred seventy-one thousand, three hundred twenty-one".