7691140321 has 4 divisors (see below), whose sum is σ = 8095937200. Its totient is φ = 7286343444.

The previous prime is 7691140307. The next prime is 7691140337. The reversal of 7691140321 is 1230411967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7691140321 - 2¹⁵ = 7691107553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7691150321) 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 3 ways as a sum of consecutive naturals, for example, 202398411 + ... + 202398448.

It is an arithmetic number, because the mean of its divisors is an integer number (2023984300).

Almost surely, 2^7691140321 is an apocalyptic number.

It is an amenable number.

7691140321 is a deficient number, since it is larger than the sum of its proper divisors (404796879).

7691140321 is a wasteful number, since it uses less digits than its factorization.

7691140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404796878.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 7691140321 is about 87699.1466378094. The cubic root of 7691140321 is about 1973.9231705899.

The spelling of 7691140321 in words is "seven billion, six hundred ninety-one million, one hundred forty thousand, three hundred twenty-one".