7650071321 has 4 divisors (see below), whose sum is σ = 7708468944. Its totient is φ = 7591673700.

The previous prime is 7650071309. The next prime is 7650071353. The reversal of 7650071321 is 1231700567.

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 7650071321 - 2²² = 7645877017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7650071371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29198615 + ... + 29198876.

It is an arithmetic number, because the mean of its divisors is an integer number (1927117236).

Almost surely, 2^7650071321 is an apocalyptic number.

It is an amenable number.

7650071321 is a deficient number, since it is larger than the sum of its proper divisors (58397623).

7650071321 is a wasteful number, since it uses less digits than its factorization.

7650071321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58397622.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 7650071321 is about 87464.6861367489. The cubic root of 7650071321 is about 1970.4034595847.

Adding to 7650071321 its reverse (1231700567), we get a palindrome (8881771888).

The spelling of 7650071321 in words is "seven billion, six hundred fifty million, seventy-one thousand, three hundred twenty-one".